What is the weirdest sexual fetish you've heard of someone having in real life?

I was on the bus and hearing two women talk about how this guy they went on a date with on Tinder was creepy because he had a foot fetish. It seems to be a fairly common opinion that fetishes like feet are disgusting even though it's actually the most common. It's not my cup of tea but it's definitely tamer than the ones involving poop, diapers, or objects. Despite dating pretty sex positive men and women, the weirdest one was a urine fetish.