Never shoot high on the goalie during warmups.
The back nine is always pressed.
You must admit it when you hit a forehand on the second bounce.
On the playground, offense calls the fouls.
Never write down the score of a bowler who is on a run of strikes.
Never admit you trapped the ball while trying to make a catch.
No overhead smashes at women in mixed doubles.
The caddie of the last player to putt plants the flag.
NBA refs will take some trash from head coaches but not a word from an assistant.
Never steal with a five-run lead after the seventh inning.