ALL good jokes are in bad taste or offensive. If a joke doesn't offend SOMEBODY it can't be funny. There are some ok non-offensive jokes, but no great ones. By the way, great nun joke, I'll tell you what my catholic friends think of it.
A catholic priest and jewish rabbi are walking down the street when they come to a playground full of young children. The priest turns to the rabbi and says 'Hey, you wanna go screw those kids?'. The rabbi turns to him and says 'Out of what?'