LONDON — Parents, fear not.

For anyone who's been the victim of unforgivable curses administered by small, angry, children, J.K. Rowling has just the ticket.

On Friday, a mother got in touch with Rowling on Twitter to tell the Harry Potter author about her son's use of the Avada Kedavra curse.

@jk_rowling My son's using "Avada Kedavra" on me instead of saying "i hate you." Makes me wish there were more killing curses. #HarryPotter — Somebody's Mother (@trieduntrue) April 14, 2016

It turned out she wasn't the only one, either.

@trieduntrue @jk_rowling My son does that too. I just tell him he his powerless before me as I am the Dark Lord. — liz (@frizzychick) April 18, 2016

@jk_rowling @trieduntrue I've been doing the same thing for years to my parents when I'm mad at them and I'm 19 now — Ayesha (@blvrrykitten) April 18, 2016

Luckily, Rowling came back on Monday morning with the perfect solution.

Tell him your love would protect him from that curse. Do Dobby eyes as you say it. Should scar(e) him out of it. https://t.co/FoQZ3atf0h — J.K. Rowling (@jk_rowling) April 18, 2016

Clearly this is a defence that Rowling knows well.

Remember, folks: it's all about those Dobby eyes.

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