Was sailing in SF bay on Sunday, the last day of fleet week. At about 4pm all the power boats arrived at the Oakland estuary, heading for their marinas, en masse. Well, the VHF came alive with cursing. Not that it had been exactly quiet all day. Heard the word '*******" quite a few times. The wakes weren't such a problem for us, just made for a fun ride down the estuary. But for smaller boats they could have been dangerous - certainly they were inconsiderate.