2 in ~3 1/2 years of driving...
First was a ticket for not seeing a temporary "no left turn" sign in an area undergoing construction, that I'd been driving through for a couple years...stopped, w/ my blinker on, looked right at the cop car, turned left...figured he was there for speeders or something. Probably wouldn't have been a ticket except that I'd switched insurance providers recently, and forgot to grab my new card.
Second was 70 in a 55 zone, that I definitely deserved. He was dead set on sending me to traffic school for it, and I certainly wasn't arguing. Thanked him for the ticket when he handed it to me, too.