If you are an accomplished jiber, do not jibe over and over 30 feet from a crowed launch site. We know you can jibe well, we just wonder about your ego. Leave the inside flat water to those who need it to survive a jibe, if it is crowed, leave room to those coming in and out. Almost all crashes occur during a jibe. LOOK around, and do not jam up the lanes.
Some sites lend themselves to certain skill levels.
A beginner should not be up-hauling at the hatchery, and I do not think an expert should be buzzing a crowded lane at the inside of the event site all afternoon. If you hit someone, stop and help them to shore. If you see someone in trouble, stop and offer assistance. If you are the one in trouble, stay with your board, sit on it, and slowly wave your hands over your head. If no one is around, sit on your board and think about how you got yourself into this mess.