I've seen parents allowing their brats to eat an entire package of whatever and throw the empy away, WITHOUT paying for it. So supporters of this practice of allowing children to graze get over yourselves. Further, if you child is such a problem, do what our parents did - leave them home with the babysitter.

People who wait to fish out their checkbooks from their massively overstuffed purses until AFTER the total is tallied. Then, they search for 10 minutes only to find that they have no pen and need to borrow one. What, you think that you won't need to pay for it this time? While we are on this - getting to the car, fishing for the keys, unlocking car, DROPPING THE KEYS BACK IN PURSE, get in car, fish for keys some more - all while people are waiting for parking.

Computer idiots thinking they can use the self-checkout

Leaving line to shop some more, but expecting others to allow your cart to maintain your position - that's my worst!