I would write a book on this, especially when I worked doing support for a university. Lately though, it's people who say "my computer is slow, I have to delete some icons from my desktop". That, for some reason, just drives me crazy.

Ah since we are doing this, I have to share a story. I worked as IT support for a university while I was an undergrad. I had a professor call me demanding that I recall an email that he sent to all of his students (outside of the university email system) because he sent out social security numbers by accident. When I told him that wasn't possible, he flipped out on me, because it was my fault. There is no reasonable response with the exception of laughing...which is what I did after he hung up on me.

I had to share that as my support days flashed before my eyes reading this thread.