It's called self-defense.....poor kiddo.....

--Mark Curran is a 7-year-old who goes to Tynan Elementary School in South Boston, Massachusetts.

 --A few weeks ago, he was on the school bus.  Another 7-year-old who'd been bullying him came up and started CHOKING him.  So Mark responded by kicking the bully in the groin.

 --And now MARK is in trouble . . . and being investigated for SEXUAL HARASSMENT.

 --The Boston public schools apparently have a policy where any attacks on the groin are considered sexual harassment.  So even though Mark's attack was in self-defense, was totally non-sexual, and he's SEVEN . . . it's sexual harassment.

 --The school district declined to comment on the case.