I've posted this before in another thread so here's a C&P of it.
Years ago, a friend told me this story. There was an older man in town and these two locals glommed onto him and would hang out with him everywhere. Apparently the old fart, who didn't have many friends, was a bit of a loner and so tolerated these two guys ...whom the locals called BDM and Beetle Bag Bailey. BDM thought they called him that because he drove the local school bus...Bus Driver Mike, eh, but everyone else knew it really meant Big Dumb Mike. Beetle Bag Bailey's nick was one of those things whose origin was lost in antiquity. Anyways, one fine summer weekend, the three of them decided to go boating so they hooked up the old fart's boat and trailer behind the old fart's station wagon and headed to the lake. Once there they got to the boat ramp and unstrapped the boat tie downs so when they backed it into the water, it would float free. Now BDM figured he should be the one to back the boat down the ramp since the old fart was hesitant about backing it up so he jumped into the car and got it straightened up and started to back up to the ramp...but he got a little vain and just had to show off his prowess at backing up a vehicle with a trailer attached so he was giving it good! He had that thing flying and of course the old fart was scared he would jack knife it and total it all off so he started waving and shouting at BDM to STOP!!! and Beetle Bag Bailey did too once he saw the old fart doing it. BDM saw both of them hooting and hollering and waving at him frantically and panicked and hit the brakes as hard as he could, sliding the station wagon and trailer to a stop. The boat though...the boat kept going and shot off the trailer and landed on the ground a good thirty feet from the water, smashing the prop and leg on the motor in the process. Turns out Beetle Bag Bailey had decided that he should unhook the winch line also.