What's wrong with bumper sewer hose storage???

Ours came already in the bumper. Someone at some point got a brainy idea of using a long 1/8 drill bit and drilling top and bottom and through the cap and cut a piece of coat hangar and bent the end. No matter how hard a bump you hit the chances of the coat hangar to come out of both holes and cap dropping and hose falling out are slim. I'm not a fan grabbing a sewer hose out of the bumper so we always keep gloves around.