Yes, there are times when I am walking out of the store with a shopping cart, give it a good push and ride it to my car.
Stupid, and I probably shouldn't do it, but it's a bit of a rush.
What can I say.

As for the stunts you'll see in this video, I certainly would not try, although it would be cool if it didn't end up so badly, since shopping carts seem to beg to be ridden.
Check out the shopping cart fail, and remember kids, never try this at home or anywhere else!