The first one with the plane was lightning. The only way it could have exploded was if the mechanic had the battery terms off and was possibly working on the brakes.
I had a power supply blow up as I had my hand inside, rearranging wires to make them more neat. Sounds like a firecracker going off RIGHT next to your ear. People in the room jumped about 3 feet off of the ground, while I fell back holding my ear. I was immediately rushed out for General Tso's chicken and beer.
S