what's your weirdest sensory "yum"?

"Don't yuck someone else's yum" is a phrase I've heard used occasionally (usually in a nsfw context) but I wanna know: what's a weird sensory yum of yours?

Mine is that I love when fast food comes out greasy, smelling and tasting of the fryer oil. 🤤 Oily hashbrowns are chefs kiss to me, but this disgusts my partner lol. I can't stop drinking crude oil!!!!

ETA: I don't smoke cigs but when I get whiff of their smoke i looooove it 😌