I was looking at Reader's Digest online, and came across these. I apologize ahead of time to those who find them groan-worthy, rather than grin-worthy.

Did you hear about the jurisprudence fetishist? He got off on a technicality.

A forgetful old gasman named Dieter,
Who went poking around his gas heater,
Touched a leak with his light;
He blew out of sight--
And, as everyone who knows anything about poetry can tell you, he also ruined the meter.