Two Irish nuns were sitting in their car at a traffic light when a bunch of rowdy drunks pulled up alongside.

"Hey, show us your tits you bloody penguins!" shouted one of the drunks.

The Mother Superior turns to Sister Margaret and says "I don't think they know who we are. Show them your cross!"

So Sister Margaret rolls down her window and shouts, "Sod off you little fucking wankers before I get out and rip your goddam balls off!"

Sister Margaret looks back at the Mother Superior and asks, "Was that cross enough?".