So, I have pretty strong legs, good dexterity with my feet, and I usually wear shoes with good traction on the bottom. I have never once been able to use these

So, I have pretty strong legs, good dexterity with my feet, and I usually wear shoes with good traction on the bottom. I have never once been able to use these damn things. You might as well be standing on a piece of metal attached to the bottom of the door. Oh, wait — that’s EXACTLY what you’re doing!