Why Bother With A Trailer?

I’ve been a bit busy, so I’m going to keep reaching into my goodie-bag of pictorial tricks for some cheap laughs. Now there are tons of boat mishap pictures on the web, as well as videos of tow vehicles rolling into the drink. But this one asks a serious question (at least to me): are boats normally properly secured on their trailers so that this wouldn’t/shouldn’t happen? No (reputable) trucker would haul a load on an open trailer without several hold-down straps thrown over it. Hmmm.