I like to think everyone has one. Nothing political, religious, or anything overly controversial, I'm talking about the innocent stuff like 'I like pineapple on pizza' or 'I don't like wearing hoodies!'
As for mine, I hate glitter! I don't care if it looks cute when you smear it on birthday cards or stick it to clothing, when it inevitably falls off of whatever it's been pasted to it will spread everywhere and it will be a straight pain in the arse to clean up without a vacuum. That's what my experiences with glitter have always been like, at least.
So what's yours?