i have yet to get bitten by a prop. the xacto knife was mad at me a few times but thats about all my rc injuries. oh yeah i also flooded my engine one time and took off the glow plug to drain it. i didnt want to flip the plane over like youre supposed to, so instead i stuck the starter on and i stupidly had my head over the glow plug hole. it sprayed a fine mist of nitro into my eyes. it felt good because its cold but after i washed my eyes it started to burn for a few minutes, then it was ok. i didnt get blind!
morals of the original "protecting yourself" post:
-be careful
-wear gloves
-wear eye protection
-be careful
-make the deliberate arc around the prop with your arm (i was first introduced to glow engines when i was like 11 so i was always afraid of them eating me up because they were so loud and scary looking, which made me get into the habit of "the arc". havent been bitten yet)