Again not me but a customer told me this story. At a busy ramp loading up after a long day. Customer goes to get the truck and trailer, wife with the boat waiting for the truck and trailer out in the water. Truck backs the trailer into the water. Another boater lines up with the trailer and heads in. My customer is waving and trying to get the guys attention. This guy is intent on getting the boat on the trailer, my customer gives up and waits. Guy gets the boat on the trailer and looks up to find he is on the wrong trailer. I think this is the best one I have heard.