Back when we were diving every weekend and launching our boat from a state park boat ramp, we were friendly with a park ranger. One of his favorite sayings was "you can't fix stupid." This was in response to the people who would forget to put the drain plug in their boat and then launch them, only to watch them fill up with water and start to sink, would forget to tie up or untie their boat to the dock before walking away or motoring away from the dock respectively, or using too small a vehicle to launch or try to pull their boat out of the water, then watching said vehicle slide down the dock into the water, yes we saw this happen, or even better, back the boat trailer down the ramp, get out of the vehicle to complete the launching process, but forget to set the parking brake, and watch the vehicle slide down the ramp, saw this happen too.