Plums especially because most of the time they're hard to remove and once you do get them off you peel the skin off with it. It's ok if there are stickers on oranges, bananas, watermelon and so on because you don't eat their skins but stickers on fruits in which you do eat the skin like plums, nectarines, apricots, apples, etc.- sucks! And it seems like they've made it a mission to put a bloody sticker on every fruit now whereas before stickers were just on a few of the fruits you'd buy. Why don't they put stickers on each and every individual grape for chrissakes! I wouldn't be surprised if they do one day.