Funny story of the day: I went to a professor's office hours to talk about a paper that I'm trying to write. About five minutes in to the conversation, I noticed his screensaver, which was on the computer sort of behind his head. It looked like a magnifying glass that bounced back and forth over the text on his screen. I was completely mesmerised by it. A couple of minutes later he said, "Isn't my screensaver cool? I can't stop looking at it either; that's why I have to keep my back to it" (or words to that effect). In the immortal words (word?) of the woman at the check-in counter at Raleigh-Durham airport last year, "Uhhh-ohhhhhhh."