There's a supermarket I often frequent where runaway shopping carts like in the above video are part of the daily experience. It's in a large shopping center that was once beautiful farmland of meadows and tilled fields just outside of town that I remember from when I was a kid. Apparently, when they built the place they decided to intentionally grade the huge parking lot for drainage, except that they overdid it. Some incompetent planner didn't stop to think that people were going to be wheeling shopping carts back and forth to their vehicles.
So every time anyone comes back to their car with a cart full of groceries the challenge is to get your car door or hatch opened up and then begin loading your bags without the cart suddenly rolling away from you. This usually involves trying to find an angle where the cart won't start rolling or using your foot to block one of the wheels. The thing is that the slope of the parking lot is subtle enough that it's not always immediately noticeable and even veterans of this parking lot from hell like me sometimes forget and so in the process of loading your vehicle you can turn around just in time to see your cart rolling away at an increasingly high rate of speed. I've chased after a cart more times than I'd like to admit. It's crazy! You should see this place on a windy day! It's pretty funny to watch actually, at least if your vehicle isn't in harm's way. It's especially entertaining to watch people who are not familiar with this place chasing after their carts as fast as they can run.