Haha these are pretty good.
Couple years ago the sensor that cuts the fuel supply off when you get in a crash went and I didnt know what was going on. My car would turn and turn but nothing. I was working and was stuck in a parking lot with a mentally handicapped Adult I had taken to the store!
A buddy came and helped me try and figure things out but we were stumped.

He got the idea to take the power wire from my amp and touch it to the fuel pump to see if it would turn on and it did. We drove back to the dorm with him in the back holding the amp wire to the fuel pump.
Still didnt know what was going on so we rigged up a switch we found somewhere so inorder to start the car i had to reach back flip the switch sticking out of the seat on and be on my way. I just had to remember to shut the switch off so i wouldnt blow the pump.
After some quality help on CEG I figured out the problem, took the sensor out and wired the two wires that connected the sensor together. I ended up buying a new sensor but havent put it in yet.
Hahaha man was I lucky!