This brings to mind a great image. When you hoist off the ground, you'll discover that your center of gravity is below mid-point and you flip feet-up head-down, suddenly unhooking and dumping onto your head. Garage door open with neighbors watching, of course! <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
Hmmm. maybe put the harness hook higher and strap a full milk jug to your feet?
Or just perch your feet on a shelf?