Dan,
We have all been there. At age 18 I decided to change the front disc pads only car. Accomplished it fairly well without too much trouble. Our driveway had a rather steep slope back towards the road. After taking the car off of the jack stands, I started it up, shifted into reverse and started down the driveway. Pushed the brake pedal in and it went to the flop, because I had not re-pressurized the system. I was pumping frantically and the brakes engaged just before the car rolled into the road.
So far no stupid mistakes with the cobra, but I am sure there will be at least one....
