The other day when I was in Meijers (regional grocery chain) I witnessed an accident. A guy in one of those motorized shopping carts came charging up to the checkout where I was at.
He was going too fast and lost control. He ended up hitting a display at the end of the checkout and knocking it over. Little cans of something went flying every which way.
Fortunately, the man was not injured. The cashier was not amused.