Agree with all posts. I was taught from Day One PROPELLERS CAN AND WILL KILL!
The CFI of my training school used to come down like a ton of bricks if ANYONE was observed to disregard even the tiniest points of prop safety. An actual insertion of his flying boot into one's arse was part of the procedure. He used to say most propeller fatalities were not so much complacency but momentary fatal distraction.
The only prop injury I ever saw was a drooling barking mutt get his ear knocked off by a taxiing Cherokee. Stupid canine.