I've had that happen before. I was gifted a Lindt chocolate bar for my birthday, put it in my back pocket of my loose-ish (not jeans) pants and by the time I go

I've had that happen before. I was gifted a Lindt chocolate bar for my birthday, put it in my back pocket of my loose-ish (not jeans) pants and by the time I got home 30 minutes later, it was completely liquified. It wasn't very warm out either, I remember it being ~10C.