I had a glow engine. I started it using a hand held electric starter motor. I tested this in my parents bath before taking her to the high sea's. Off she went into high revs 22,000 rpm roughly, I also forgot about the tell tail jet of water that shoots out and up from the rear deck. I was so busy hanging onto the boat I couldn't shut her off as I was my myself. In the end I managed to dislodge the fuel line from the tank.
When I stood up i nearly died, though the smoke filled bathroom half the contence of the bath was over the ceiling, walls, floor and me. A major cleanup ensued