Ah, sportsmanship …

There’s nothing like lining up and shaking hands after a youth baseball game to teach the youngins the proper respect for one’s opponent.

Nothing, that is, unless it’s assaulting the opposing coach, which is what Andrew Hamilton, a fill-in coach, is said to have done during the traditional handshake in Berkeley Heights, N.J.

"Basically they had words, and this guy just head-butts (the Westfield coach) in the face," police Capt. Cliff Auchter explained.

Hamilton was charged with aggravated assault, according to news reports, “because the incident occurred in front of children under the age of 16 at a school or community-sponsored youth sports event.”

If found guilty, perhaps Hamilton can plead for mercy — citing youthful impetuousness. He is, after all, only 47.