Buckle up, because this is a weird one.
You’ve heard of cupping, right?
The idea is that you apply suction to the body. The vacuum sucks the person's skin up into the cup, causing bruising. And... health?
The Cake Spit Shield(s)
If an inventor's life is dominated by their children's social calendar, they can end up taking the road most traveled. That's why the cake spit shield has been patented so many times.