I never curse a fellow competitor, or on the rare occasions I sail a double hander, I never curse the crew; to them I'm exceedingly polite, (well maybe not to the competitor who fouls me with a smile or, worse yet, an air of indifference, but I never curse a competitor even then). Cursing stays onboard; loud enough for me to hear and no one else.
This is why the following YouTube had me laughing.
WARNING! NOTHING DELICATE ABOUT THIS VIDEO. THIS VIDEO IS A COMPENDIUM OF LOUD CURSING DURING DINGHY RACING. THE F-BOMB (AND OTHER NAUGHTY WORDS) IS BLURTED OUT EVERY 2 SECONDS OR SO...... (NSFW)
Australian Cherub sailors..........
Your f$%&@ng using up all my heartbeats!.