In general it seems a good rule of thumb that every foot of pleasure yacht length, deduct 1 IQ point from the owner. Paul has video of a racing yacht playing chicken with a super tanker.
He also has a story from Newport harbor when he was skipper of a "small" 1000 ton ship and some Upper Class Twit Of The Year wanted to impress his yacht bimbo.
Man, if I had that much money, I could afford some sense. And some manners.
My sea stories are nothing on Paul's, but I got a small taste of this myself when I was in the Coast Guard Auxiliary. We were doing safety patrol at the Quonset (R.I.) Air Show, keeping a big part of the harbor clear so there would be a place that a plane could do an emergency ditch without landing on 50 anchored pleasure craft. All afternoon we'd find some new arrival getting a "front row" anchor spot. We'd scoot on over and tell them they had to move out of the restricted area.
Most of the guys were pretty cool about it, even the ones who thought that alcohol and water made a nifty cocktail. But one guy on a very nice 60 footer wasn't having any of it, or of us. Seems we weren't real Coasties, he explained in no uncertain terms to us.
Oooh kaaaay then. Nope, we were just a bunch of volunteers, trying to help keep everyone safe. Not Coasties at all. But we knew the Coasties. And had a radio (three, actually. Always carry a spare, and a second spare).
Those 25' RIBs can haul ass. And Mr. Sixty Footer found himself hauling anchor, and ended up with a very thorough safety examination (don't know if he got written up or not).
Like I said, my Sea Stories are not in the same league as Paul's, but it's really surprising how many people lose all respect for the well being of their hind end once they cast off from the dock.