Simple.
If I have a boy, I'll name him Ronin.
That way, the only thing they'd call him is Bonin' Ronin (
EDIT:Or groanin' ronin), and that wouldn't be so bad once he learns about sex and its numerous euphemisms
And, if the elementary school kids somehow are industrious enough to look
up the word, they'd find that Ronin means lawless in chinese and in Japan
Ronin were outlawed samurai who were kicked out of or renounced their lord's house
and set out to do murderous deeds for money. Kinda kewl, huh?
If kids pick on him then, well, they're just cruel.