http://education.yahoo.net/articles/careers_for_math-haters.htm?kid=1NZXT
Fail. They didn't mention the fast food field.
I was at MicD's last week and I gave the guy a ten and two ones for a $6+ bill so I would not endup with any more ones. He couldn't do it. He tried to give me the ones back and I told him I was trying to get avoid a bunch of ones. He continued to hesitate (and from the look on his face, push his sperical head through a triangular hole). I told him to just enter the amount I had given him and it would become more clear. He couldn't do it. He entered $10 into the machine and then proceeded to spend a minute (which is a very long time when your trying to be polite) trying to figure out what to do about the change (which of course he messed up).
The funny thing is I realized as I drove off, the guy was probably thinking I was as stupid as I thought he was.