True, having your boat open like a can of cat food
would fit my description of a very bad day, but.......
.....that's not the problem in most cases. It is more likely that you will get little streams of water
seeping in if you run with the rub rail in the water
. It would take days to sink a boat this way, maybe weeks, but it would definitely make for a musty boat and a soggy mess at times.
Jeez, now I've gotta pull my rub rail apart? OK, I'll check.