I have said it a hundred times, in this forum and others: my number one pet peeve is people who are too fucking lazy to put their shopping cart away in its proper place when they are finished. The stores should have some method of keeping track of the lazy bastards and forbid their use of a shopping cart to begin with. Most of them wouldn't shop there, but if all of the stores enforced it, they would soon have no choice. If they didn't shop at stores where I shop, who the fuck needs them? At least the shopping carts wouldn't be rolling around the parking area hitting everyone's car.
And, have you noticed that the motorized carts for the physically challenged are always ridden by someone who weighs 400 pounds?