It's discouraged to frighten your children.
Steve's son was being far too loud while he was trying to work.
Steve wanted to quiet his son down.
Steve knocks on the kids door and tells him to quiet down that he's trying to work.
Steve put on a scary mask he had, and runs into the son's room screaming at him.
Steve's son apologizes to his dad and says he'll be quiet.
His son runs away, and trips over something, breaking his leg.