It's wrong to curse at people in front of others.
Bob is coaching a little league baseball team and the short-stop just dropped a fly ball allowing a runner to score.
Bob wants to motivate the player to do better.
Bob talks calmly to the player and gives her advice on how to improve her feilding.
Bob curses at the player about the fielding error.
The player feels better about making the error and is detemined to become a better short stop.
The player works hard and improves a lot, but she hates Bob eventually quits to join another team.