I have 15HP outboard on my boat...the last couple of years I've taken it on and off when I get done fishing and get home but it's a chore to carry it in everytime. How many of you leave your engines on the boat while it's in the driveway...maybe I'm being paranoid but I'd rather be safe than sorry...I'm thinking maybe make a stand with some bigger wheels I so I can at least put the motor right by the back door. I was thinking about a lock but I'm betting it could be easily cut off.