most of the time I don't mind the wet spot, but there was one occasion where I didn't like it in the least.

I was visiting my friend at college and he and his girlfriend decided at the spur of the moment to enjoy a little "quality time" when I was out of the room, and rather than enjoying the moment on his dorm bed, they took advantage of the air mattress that I was sleeping on for my visit.

Needless to say he didn't volunteer to let me sleep in his bed that night, so I got the wet spot.........though in his credit he did attempt to get a hair dryer and dry it prior to bedtime.