Education is really important. It goes hand in hand with safety and with progression of the hobby. With this new section, I am going to try to post information that I had no idea about when I first started.
To start with, my engines are larger (3 hp and greater) which means that if they grab you there will be problems.
Here is a YouTube video of Bill Geyer starting up his Ajax engine. Note the calm and systematic method he uses to start it. No jumping in the flywheels nor misplaced fingers.