Many many years ago my radio control boat had a aero engine installed. One day it would not start. So took it out. Bolted it into my bench mounted vice. Fitted a 7 inch aircraft propeller onto it and proceeded to try to start it by flicking the prop. This went on for several minutes with just the occasional cough from the engine. So was well into the routine flick, pause, flick etc. Then the engine fired up and I was so into the grove, I stuck my finger into the prop arc to flick it again. It hurt. Prop cut across 3 fingers. I was on my own and as the bleeding was not stopping I wrapped a towel round my hand and drove to A&E. Nurse asked how I had done it. Not saying I said, up you will only laugh. We won’t laugh she said. We need to know she said in case of infections. So I told. And did they laugh, oh yes they did, laughed their heads off. No traditional stitches, not enough skin left on the back off the fingers so just Butterfly tapes to pull the edges together. It was fun removing them later.