Over half of my late Dad's nearly 14000 flight hrs were in helicopters (TH-13, TH-55, UH-1H, Bell 206, AH-1J, mostly military flight instruction, but also civilian fire fighting and medivac) and he was very clear that a helicopter, unlike an airplane, is doing everything it can to come out of the air and kill you. Lots of physics balancing out that can easily get out of whack, especially when rotors hit stuff etc.
The two times he had to make an involuntary landing involved a TH-13 engine coming apart, and a Huey losing power; both resulted in auto rotation down. He and his student (in the mid 60s) were actually in greater danger from the giant hog that attacked the little chopper and kept banging its head into it. They landed in a farmer's field near Enterprise Ala (Ft. Rucker).
You better take cover and get 2D on the ground when one is coming down near you. He saw a midair between to of the 13s (Bell 47s) where the rotors of one went into the floor of another, and cut the instructors legs off, the student landing it. The other one wound up a fire ball, right in front of him on approach to a stage field.
I admire anyone who flies those things, especially in combat.