We would never laugh at anybody who has a legitimate need to use a motorized cart. They're a great way of helping people with health conditions maintain their independence, and it's a good thing that some Walmart stores make carts available for shoppers to drive around in if they need to. Unfortunately, some people just take liberties with them. This woman hasn't just taken a liberty; she's run a thousand miles with it.
We really hope there's nobody stuck at the door of this Walmart waiting for a cart to become free, because she obviously doesn't need it. If you're capable of getting out of your cart and standing on it in order to reach the highest shelf, you obviously don't have any problems with your legs. This is a combination of laziness, selfishness, and blatant disregard for other people. Not only that, she could easily fall off and injure herself or someone else. Just as a thought, though, this Walmart might want to think about the height of its shelves. There are NBA players who couldn't reach up that high without assistance.