A French rescue helicopter was involved in a training exercise when it had an unfortunate encounter with low-hanging power lines.
Very fortunately, no-one was hurt this time.
The helicopter was equipped with a wire-cutter, ringed in the photograph below (a screen-capture from the video above).
That may have helped prevent a crash, by deflecting or cutting the wires before they could get tangled in the rotor. However, I imagine all on board had a brown-trouser moment!