This is one of those things that I would have never believed if it hadn't happened to me personally :P (and with witnesses)... I was working in the computer labs of my university when I was contacted by one of the faculty liasons for the university football team. It turns out one of their players had a bit of an interest in computers and was thinking of going into computer science as a major.
Well I'm not one to be particularly prejudicial against 'jocks' so I agreed to meet with him and see if it would be possible for him to actually make it through this relatively difficult program.
We met for dinner with my family and several other CS friends and talked with him for awhile. It turns out the reason he wanted to go into computer science was he really enjoyed playing computer games. Which I guess is as valid a reason as any since its one of the main reasons I ended up in computer science myself.
The next question (and his subsequent answer) absolutely floored everyone at the table though. I asked "Have you taken any computer classes in high school and do you know any computer languages?". He looked at me... stone faced serious... then looked around the table... and said "Ooh man, you mean they can talk too!?"
Needless to say that was one less CS entry candidate that year.