I think the one I do that is the most divisive is the Innocent Hare - even got a comment from a normally "be nice to everyone" MC at a club one night, about it being an inapt use of the word "sportsman" but some of the travellers (not, I think, Roma) in North Kent seem much to like it.

And the line from the Old Man from Over the Sea "the daft old cock couldn't learn how to screw" has been known to cause "tut-tut" noises.