I was outside today talking to a neighbor and my daughter ask me if she could open a can of fruit cocktail for her and her brother and his friend. I said sure. Well, I didn't know that she didn't know to use the can opener. she was using a knife to open the can and she stabbed her hand. it is just a small stab, I just cleaned it up and put a bandage on it. she is 13 years old. I then explained to her that when opening cans you use the can opener, not to ever try to open one with a knife.