A mid air with wires:
A lynx hit wires in Norway, doing about 60kts. Stopped the helo - dead! Wires contacted the base of the windscreen and started to work their way up towards the main rotor
Pilot managed to retract himself and his crew from the snare and landed safely.
A seaking crew from the danish navy flew into wires and lost their entire tail stanchion. Crew instantly became passengers as the a/c spun violently earthward and landed in the fjord.
All survived.
A police AS355 in the hover in broad daylight was struck by a passing Tucano (prop) RAF/Navy FW trainer in its stinger region. Tucano cockpit smashed, Both landed intact.
During display rehearsals:
Two seakings contacted blades during a manouevre. All survived. Similarly two Gazelles on another occasion.