I used to work at a grocery store, so I feel all the pain. Express line was the worst.
"If I have 8 cans of the same kind of soup, does that count as one?"
"I go with the basic counting principle of one can being equal to one item, not 8 cans being equal to one item."
I work as a telephone operator now, and I get my fair share of morons calling in every day, like this guy:
[Copied from MSN conversation]