As we are on about taxiing, imagine the following scenario.
You are taxiing a Super Puma very close to a set of hangar doors on your starboard side. You marshaller gets very concerned about how close your rotor tips are to the obstacle. He signals you to turn away from it and you do. You apply full left pedal and brake, the brakes on the port wheel lock and you pivot through 90 degrees on the mainwheel.
What and when will happen to the tail rotor.