1. put the knife under that removable pad in the shoe.
2. cut a hole in the back of the shoe that looks like this:
|_ _ _ _ _ _ _|
dont mind the periods, they are just place markers.
3. tie a string (fishing line) to one of the holes in the back of the handle, run the line through the above hole in the back of the shoe.
4. drill a hole in a quarter and tie the string to the quarter, then stick it in your pocket. when you need the knife, grab the quarter from your pocket, lift your leg with the shoe and knife, then pull it out. the way you cut it, the flaps will open and the knife will slide out, but will stay closed all other times. could someone please make an instructable on this, or tell me if it would work by testing it out?