Kids Say the Darnedest Things When They Make Up Their Own Jokes

Today, one of them started off a lesson with this groaner:

KID: Why does a flute play so high?
ME: I don't know; why?
KID: Because the instrument does drugs!
ME (shakes head): Boo! That's a bad one...
KID: Oh, c'mon; it's on the flute jokes website!
ME: Really now...
KID: It is! It's really old, though; it's been on there since back when people did drugs.
ME: You mean the 1960s? The only websites in the 1960s involved spiders...

("Back when people did drugs"?  No way was I going to burst his innocence on that one.)