Roger that! "Jason" will be there in about 10 minutes, covered up the SERK to keep prying eyes away from my baby... And the wife has orders to shoot if he touches any of my tools.
I hate letting others do work on my stuff - but am smart enough to realize the things have enough energy to kill or maim! 
Sean
I installed garage doors when I was a in highschool, tortion springs can be dangerous. A buddy had one of the bars used to wind the spring slip and the other pinned his arm against the wall, didn't break it, but it swelled up like a balloon! If you get two guys to lift the door, you can take vise grips and lock them to the flat side of the track just below the bottom wheel and it will keep it up while you get stuff out. Once the door is up, there's really no weight to hold up, it all on the horizontal track. We use to install these doors by our selves, it was a bear to get them up and clamp the vise grips on the track.