A colleague has been struggling with some negative talk on the back channel and asked me how I deal with it. When someone slights me, I use that resentment to drive me further, finish hard projects, go the extra mile, and get up when I fail.
This is the famous chalkboard moment. Sports teams often use slights and trash talk to go out and hand it to the opposition.
Michael Jordan admitted a similar fueling approach when he was inducted into the Hall of Fame. Jordan was criticized (justly), probably because he said he did it to prove all of his critics wrong. He also revealed several resentments toward players that were in attendance.