A Biter
A Redditor was on a flight from Amsterdam to New York when they noticed a small child running up and down the aisle. They thought at first that they were just playing a game, but then they noticed what they were actually doing.
They were trying to bite any passengers whose arms stuck out even slightly. Fortunately, a flight attendant managed to stop the child and get it strapped back in with their family. The child didn’t try again afterward.