Never back down.
Unless you’re on a ladder.
Or you suddenly realize you can’t actually beat a bear in a wrestling match.
Or you are climbing a rope in gym class.
Or your driveway is on a hill.
Or you encounter a mean giant at the top of a beanstalk.
Or you’re rappelling down a cliff.
Or you climb a tree and find a bee’s nest the size of a Volvo.
Or you realize the error of your stance.
Otherwise never back down.