Piers Morgan went to bed pretty upset last night after an online mob attacked him for daring to say that a transsexual guest had once been male. The guest, Janet Mock, attacked Piers on Twitter for his “offensive” comments:

"Was a boy until 18." @PiersMorganLive get it the f*k together. #redefiningrealness — Janet Mock (@janetmock) February 5, 2014

.@PiersMorganLive I was not "formerly a man." Pls stop sensationalizing my life and misgendering trans women. #redefiningrealness — Janet Mock (@janetmock) February 5, 2014

Prior to Mock’s angry tweets, Morgan had nothing but kind words for his guest:

Minutes later, after Mock lashed out at the CNN host, it was all downhill:

Sorry? > RT @ChernoBiko While on the topic of genitals @piersmorgan please tell America the size of your penis & if your left nut hangs low. — Piers Morgan (@piersmorgan) February 5, 2014

She was. > RT @blogdiva: DUDE @piersmorgan DID YOU ACTUALLY SAY @janetmock WAS "FORMERLY A MAN"?!?!?! WHAT THE HELL IS WRONG WITH YOU? — Piers Morgan (@piersmorgan) February 5, 2014

So silly > RT @Yuricon: @piersmorgan "Piers Morgan, currently a man, with male genitalia, was excruciatingly rude to a woman on TV tonight." — Piers Morgan (@piersmorgan) February 5, 2014

A lot of very irate people accusing me of 'transphobia' because I devoted a third of my show to @JanetMock 's inspiring story. Weird. — Piers Morgan (@piersmorgan) February 5, 2014

For the record, I'm not anything-phobic. We'll, apart from Madonna-phobic obviously. — Piers Morgan (@piersmorgan) February 5, 2014

Don't be so churlish – this is ridiculous > RT @janetmock: .@PiersMorganLive I was not "formerly a man." Pls stop sensationalizing my life — Piers Morgan (@piersmorgan) February 5, 2014

This is so STUPID > RT @Jeevesmeister: great job @piersmorgan being a weirdo disgusting transphobe who doesn't respect human beings — Piers Morgan (@piersmorgan) February 5, 2014

I've never been subjected to the kind of nonsense that @janetmock and her supporters are accusing me of now…wish I'd never booked her. — Piers Morgan (@piersmorgan) February 5, 2014

Oh, stop it. You 'get it the f**k together'..seriously. > RT @janetmock "Was a boy until 18." @PiersMorganLive get it the f*k together. — Piers Morgan (@piersmorgan) February 5, 2014

For the record, @janetmock had no problem at the time with our interview – but now seems keen to score cheap points. Very disappointing. — Piers Morgan (@piersmorgan) February 5, 2014

In fact, @janetmock THANKED me for the interview. Now pretends she was mortally offended. Give me a break. Hate this kind of crap. — Piers Morgan (@piersmorgan) February 5, 2014

As for all the enraged transgender supporters, look at how STUPID you're being. I'm on your side, you dimwits. @janetmock — Piers Morgan (@piersmorgan) February 5, 2014

No, worse – the 'let's create a fake furore and sell books' way out > RT @SJGallen @piersmorgan @janetmock She took the coward's way out — Piers Morgan (@piersmorgan) February 5, 2014

Shame on you @janetmock – for belittling this important issue with your cheap shots at my expense. You were very different in my studio. — Piers Morgan (@piersmorgan) February 5, 2014

I sadly now realise this. > RT @virymtzquezada @piersmorgan @janetmock piers remember, that she is trying to sell a book! she wants fame! — Piers Morgan (@piersmorgan) February 5, 2014

Pathetic > RT @sugarandsplice @janetmock Shame on you, Mr. Morgan, for believing that you can belittle a woman of color to get ahead. — Piers Morgan (@piersmorgan) February 5, 2014

Pitiful > RT @RyanOc16 @piersmorgan I think its utterly disgusting at how you treat some people you transphobic nasty man !! — Piers Morgan (@piersmorgan) February 5, 2014

So.. I try and highlight @janetmock 's inspiring story and she & her supporters respond by trashing me. Really disgusting. — Piers Morgan (@piersmorgan) February 5, 2014

And now she runs to @BuzzFeed to cry foul… I've been played in a disgustingly cynical manner. > http://t.co/hbXCeTM0XH … — Piers Morgan (@piersmorgan) February 5, 2014

I'll deal with you tomorrow night on air @janetmock – never been treated in such a disgraceful manner. Be proud. — Piers Morgan (@piersmorgan) February 5, 2014

Never felt so let down > RT @isyrarsenal @piersmorgan @janetmock never seen you this pissed — Piers Morgan (@piersmorgan) February 5, 2014

Because it matters, that's why > RT @RogerRiley2 @piersmorgan why you letting it get to you?! Not worth the hassle you know the truth — Piers Morgan (@piersmorgan) February 5, 2014

Being transgender doesn't give you the right to slur, distort & ridicule someone who supports the issue 100%. Shame on you @janetmock . — Piers Morgan (@piersmorgan) February 5, 2014

Shameful, actually > RT @romachho @piersmorgan you treated @janetmock in a respectful manner. Shame the same thing can't be said for her. — Piers Morgan (@piersmorgan) February 5, 2014

None will be deleted > RT @metalmujer Don't forget to screenshot @piersmorgan's more loathsome tweets. He has trouble owning his words — Piers Morgan (@piersmorgan) February 5, 2014

Going to bed. What an incredibly annoying day. — Piers Morgan (@piersmorgan) February 5, 2014

Meanwhile, a legion of Mock’s supporters went after Morgan, whom they consider the worst cisgendered transphobe ever. Or something.

Tonight's conversation about @piersmorgan was made possible by a grant from #cisnormativity and the number zero. — Cisnormativity (@cisnormativity) February 5, 2014

@fakerapper @piersmorgan He is disgusting and has transphobic people cheering him on and claiming this is about book sales? Ridic. — Trudy (@thetrudz) February 5, 2014

Hey everyone, look at @piersmorgan THROWING A FIT b/c a Trans* woman pointed out that he misgendered/objectified her. #redefiningrealness — Anna Schwanebeck (@AnnaSchwanebeck) February 5, 2014

.@CNN, how often do you fire anchors? PLEASE LOOK INTO FIRING @piersmorgan. He is insulting Janet Mock for no reason. Investigate this. — PrestonMitchum (@PrestonMitchum) February 5, 2014

@piersmorgan is being corrected by a trans WOC @janetmock too much for your ego? You don't get to tell her what's what about being trans. — Nika Jewell (@NikaPlaidypus) February 5, 2014

https://twitter.com/frockdoctrineuk/status/430961399603666944

It's shameful is that you refuse to admit your mistake and are adding to the violence trans people face by your silly tirade @piersmorgan — Dr. Kortney Ziegler (@fakerapper) February 5, 2014

https://twitter.com/shadipetosky/status/430942495170494464

In short, @piersmorgan is not transphobic. What @piersmorgan is is misogynistic & transmisogynistic, made fertile by structural ¢issexism. — Patience be. (@patienceinbee) February 5, 2014

"Lets appeal to transphobia by centering Janet's experience around how cishet men would feel dating a trans* person" –@piersmorgan — Michonne Pope-Leveau (@SeauxICreep) February 5, 2014

Hm. @piersmorgan seems to genuinely respect @janetmock yet can't take feedback that language he used wasn't respectful. Try harder, Piers. — Melissa Green (@ProfCritic) February 5, 2014

Wow. @piersmorgan needs to get a fucking clue. — Carolyn Petit (@carolynmichelle) February 5, 2014

Oh honestly @piersmorgan if you're not willing to engage with criticism, then just go masturbate in private like a decent person. — Amadi (@amaditalks) February 5, 2014

https://twitter.com/Jamie_Clayton/status/430939697234575360

What @piersmorgan is doing right now is exactly what I mean when I say cis people assert they know more about our lives and bodies than us. — igotdaleaf (@Wolferfly) February 5, 2014

Privilege is when you complain for saying offensive things and getting called out on it. (cc: @piersmorgan). — PrestonMitchum (@PrestonMitchum) February 5, 2014

.@piersmorgan @janetmock Yes, let's all stop and think about how Piers is The Victim in all this. Wow. Such crass and craven trolling. — CarolynColletteGray (@Carolyn_C_G) February 5, 2014

@milo0ryan @piersmorgan he said she USED to be a boy, then she ditched her penis and testicles. So now she is a she — Michael Matthews (@YourBuddyBurns) February 5, 2014

oh please…you big crybaby. You attacked a woman in public & got held accountable for your words. Man up & own it @piersmorgan @janetmock — voz (@metalmujer) February 5, 2014

He's never been "subjected" to such criticism before, you guys. Being a straight white man is just that good. @piersmorgan — Anne B (@abroshar) February 5, 2014

Violence is not always physical. Just take a quick look at @piersmorgan's timeline for what violence look like in the form of words. — rocco (@OMFGio) February 5, 2014

You misgender someone and get mad them for pointing it out and then imply they're ungrateful. You're vile. @piersmorgan — ⚜Hello Titty⚜ (@JasmeanSuntrill) February 5, 2014

WHY IS THE CIS WHITE HETERO RICH ABLE BODIED MAN ALWAYS THE VICTIM?! WHYYYYYY? @piersmorgan @janetmock — CHERNO BIKO (@ChernoBiko) February 5, 2014

Being cisgender doesn't give you the right to misrepresent trans people and then take to Twitter to paint yourself as a victim @piersmorgan — Dr. Kortney Ziegler (@fakerapper) February 5, 2014

.@piersmorgan If this is the worst treatment you have faced in your life, it proves how you have been isolated from that oppression. — Burn Racist Costumes (@politiquestions) February 5, 2014

I can’t wait until your show inevitably gets canceled, you small-minded, puerile, vengeful little git. @piersmorgan — Vivian (@VanguardVivian) February 5, 2014

Well. Now we know what gun rights advocates and transgender advocates have in common — an extreme dislike for Piers Morgan.