I hope no one stares at my butt today

Last night, the dryer didn't dry my clothes completely, and this morning, most of my jeans were still damp. So I pulled on a dirty pair instead.

Got to campus, and discovered that there's a big brown spot all over the back of one leg.

Eek.

This was the pair I was wearing on Friday - was the spot there then, and you all were just being polite? Or is it a more recent acquisition?

My instincts say it was from the gun cleaning stuff, but I was also sitting on the ground for a while.

I think I'm going home after class and changing. I've got the other jeans hanging up, so hopefully they'll be tolerable by then.