Worst tea you ever had?

Well, not to be a pessimist, but I am curious!

Mine was a recipe from my acupuncturist when I had a terrible sore throat. It had mushrooms and tree bark in it, and it was brown, and it was GOD AWFUL.

As far as other tea experiences in life – I guess anything lukewarm is always a downer, or whenever you go to someone’s house and they didn’t properly wash their teacups so there’s a lot of soap residue floating on the top…ewwwwww.

Yours?