Diaz's character is trying to raise money for breast implants so she helps out at the school car wash, possibly so she can skim a little off the top. It's one of those movie moments.
"That car wash scene is a very athletic endeavor," said Diaz. "One false move and it gets really ugly. It turns ugly quick," she said.
"Bad Teacher" is clearly an R-rated comedy.
"People say raunchy. To me, raunchy means that you're making an effort, you know what I mean? And for us, I think we were just sort of like, we just didn't really care," said Diaz. "I think that that's the kind of comedy this is, it doesn't care what people think."