I love [[Peter Singer]] for many reasons; one of them is that he's completely fine ruffling some feathers on the way of making a logical point.
For example he got pressured by some groups for saying it seems fine to eat oysters and it might even be better than eating just vegetables (as harvesting those can harm small animals) and he basically told them to go fuck themselves (paraphrasing) and stuck to his guns. I don't eat any seafood currently, but go Peter I say.