Awhile ago, my snake peed in my shirt pocket. So I took off the shirt and tossed it straight into the washing machine, and didn't think another thought about it.
Fast forward to today, when I was at a gig and went to used the restroom. As I was washing my hands, I looked in the mirror and went, "Hey, what's that chalky spot on my shirt?" Yep, there was still a chunk of urate that had survived the washing machine in the bottom of my pocket and managed to go completely unnoticed. I'd even had my phone in that same pocket on my way over there.
So, I went to my gig with snake pee on my shirt and didn't notice until halfway through. Fortunately the gig was for an audio recording, so it didn't *really* matter that much, buuuuut..... yeah.
I swear I don't usually run around wearing animals' bodily wastes!