I have, yes. I was in a tournament with a friend of mine who was very, very nervous and played most of the rounds in fear of losing - not the best look. In the fifth round, were paired together, but I was undefeated and already in the Top 8. So I made him play it out - but I threw the match, deliberately, so that he would win. He was so happy that his face said it all and we both went into the bracket as a result.
Have you ever sang a song in a public performance of any kind?