I stumbled on this topic searching for something else. I haven't thought about this for years. During summer session at college, the library world be pretty deserted and I would find the row of study desks that was most deserted so I could nap if I got tired. The desks were lined up against the windows all facing the same direction. This older, I'm guessing grad student, would always take the desk right in front of mine. I thought, wtf, the library is empty and you have to take this one? Day after day this happened. The desks had high partitions so I only saw him arrive and sit down then he was hidden. And I don't know how I didn't notice this until days after he starting coming by. He actually was sitting on the floor and looking up my shorts all that time. I caught him because I was getting something out of my backpack under the desk. I'm a boxer guy so thinking about all the times (more like all the time, this was when I would have been maybe 19-20) I was hard and my cock was peeking out. He would have had a pretty good show.