Parents' annoyance level: 4/10. They had to tell kids that Moon Shoes were not for the indoors and then they had to drive them to the hospital.

Moon Shoes, the king of snapping children's ankles. But everyone knows of those injuries. We'd like to draw light to others that weren't nearly as mentioned in the "Caution" section of the instruction. Such as, jumping indoors on top of your bed for double the bounce and hitting the ceiling fan. Or, having to go outside and play with these on the blacktop and, of course, landing on your elbows.