In the anime Naruto there is a taijutsu technique known as the Sennen Goroshi (1000 Years of Pain). Yes, the little boy’s mentor, Kakashi, pokes him in the patoot. A number of years later, after Naruto returns from training with another mentor, he tries to return the favor

Oddly enough (or maybe not so odd), it has been used in another anime – the pretty crude humored Shin Chan

I have no idea why I find that hilarious. Oh, wait, yes I do: they’re getting poked in the butt 🙂