 Say you're in the lake, you're in Devil's Lake. Maybe you pick some weeds up, and you load it up, and you've got to get under the boat and get the weed out. Ah, man, I've got a bad back. I don't want to do that. Maybe you've got some sort of piece of milfoil flapping in the breeze. Is that a violation? Yes. So when you pull your boat onto a trailer and you're done for the day, you must drain all the water out.