The nice thing about snagging helicopters is it does not have to be excessively thick cables. In the incident i read about, it was regular kite string - continually winding it up and wrapped around the control arms a hundred or more times, then slowly tightening by the action of the rotor turning, it was enough to disable the helicopter.
Oh my God. That horrible Humanities building. I had to drop something off for a professor on the third floor. Stupid elevator (not all elevators went to every floor) took me up there but to a different part. I couldn’t get through the locked door and had to go back down and take a different elevator to the third floor floor and hope this one would get me to where I needed to go.