Car is Full Nuns

Immaculata and says, “I don’t think they know who we are; show them your cross.”
Sister Mary Immaculata rolls down her window and shouts, “Piss off, ya fookin’ little wankers, before I come over there and rip yer balls off!”
Sister Mary Immaculata then rolls up her window, looks back at Mother Superior, quite innocently, and asks, “Did that sound cross enough…