I had an MC scow tack inside the zone a little overstood and ahead of me on my A-cat once, I held my course for the mark, got inside of him and he turned down and hit me. I hailed protest. He hailed back "I protest your speed ... if you weren't so f*&$#*^g fast, this wouldn't have happened". I was pissed at the time but find it funny now. And, btw, he's an a-cat sailor now.