"If your son thinks that is funny, that ship sailed a LONG time ago."

Tell her “Time’s Up” for her little bastard future rapist!

Yep, because this kid is clearly still her precious little snowflake. Personally I’d give this woman shit for letting her spoilt little shit run amok and destroy your dignity.

Good, you can yell at the mother while you're at it.

That can get a kid expelled from school

Yeah. You're the one ruining his innocence. Meanwhile, she's teaching her kid that antisocial behavior is acceptable. Since "innocent" originally meant "not knowing right from wrong," it looks like she's working _really_ hard to preserve his innocence, at the cost of strangers being able to wear pants.

This is when you press charges for sexual assault, call your local family services agency, and sue the mom financially off the planet for her enabling behavior. Nobody should have to deal with that.

I'm willing to bet my paycheck that when he grows up and becomes a delinquent, his mother will cry crocodile tears while sobbing something along the lines of "Where did I go wrong?"

Fairly certain that constitutes as sexual harassment.

I'd backhand that little shit into next week.