Anytime I (m) go partying at a pool place, I like to being a spare change of undies. Why not just bring swimming shorts you ask? Generally no one bothers to get changed so people tend to just take their shirts off and dive in. I'm okay waiting for my pants to dry but I can't stand walking around in wet undies. Plus underwear is pretty easy to tuck into your pockets (especially those big ones) if you fold it up properly. Some people swim in their undies only then go commando after in shorts, that also works.

Was partying at a friends house on Christmas and got pretty drunk but not drunk enough to straight up pass out. When the party was over most people left but a couple of people stayed behind and help clean up. When it comes to lights out everyone either found a couch or made do with a mattress or some piles of blankets.

All is well, until I rolled around in bed remembering that I habit of covering my face when I sleep. Blankets, table cloths, eye cover anything is fine, I just can't sleep without it. I would use my shirt but I split dipping sauce on it earlier and I can't sleep to the smell of onions in my nose. As usual I brought spare underwear and my drunk ass thought it was a good idea to use it as a face cover in someone else's living room.

I woke up to my friend making coffee. I checked the time and saw him staring at me. "Is that mine?" he pointed to the undies next to my face and my response was "smell it and find out."

At the time I thought it was a good response because I was hoping he'd realise it was fresh clean and not some random underwear I found around the house. But looking back on it, I realised I must have looked like the biggest perv. I went into someone's house, took their underwear, and then invited him to smelling it.

Not sure if he told anyone but I'm pretty sure he's scarred from thinking that he was finding out someone slept sniffing his undies.

TL;DR my friend thought I stole his undies and used it as a face cover to sleep.