Two nuns were sitting at a traffic light ...in their car in Dublin when a bunch of rowdy drunks pull up alongside of them.
"Hey, show us your chest, ye bloody penguins!" shouts one of the drunks.
The Mother Superior turns to Sister Margaret, "I don't think they know who we are. Show them your cross."
So Sister Mary Margaret rolls down her window and shouts, "Screw off ye little fookin' wankers, before I come over there and rip yer nuts off!"
Sister Mary Margaret looks back at the Mother Superior and asks, "Was that cross enough?!"