Ditto to everything that's already been said. I hate the last minute check writing people without their ids, the bratty little monsters, and old people who use their age. One day I was getting gas and went inside to get some gum. The lady at the counter was getting ready to ring me up when this lil old lady just walked in front of me like I wasn't standing there!!

The cashier looked at her funny but I guess since I didn't do anything (didn't wanna run the risk of going to jail for beating up an old lady, which I really wanted to do--I'll see you in hell 33girl

) she just went ahead and took care of her first.
Being a "professional" shopper I have learned to avoid a lot of stuff. Main piece of advice--NEVER get in what looks like the shortest line. It's a trap.