Does this make him a bad teacher?

Darren has this piece about a teacher who's living with one of his students.

Last year, Jordan Powers was just another student from Mr. Hooker's class. Now she's his live-in girlfriend. James Hooker -- the 41-year-old married father who left his wife and kids for his 18-year-old-student -- might be the worst teacher ever.

He should never have an affair with his student. Don't look for love on your class roster, even if she graduated and turned 18. There's too much baggage there. Certainly don't leave your family for the girl. He's 41 and she's 18 ... really?

It's the same as sleeping with your boss, fraternizing in the military, or looking for a wife at the family picnic. It's a bit unseemly and in practice quite problematic. Someone invariably winds up being hurt. It's illegal in most states for that reason.

However, that doesn't make him the worst teacher in the world. It makes him a bad person who happens to be a teacher.