ouch!
There's usually a program on Discovery Wings or the like entitled "Dead Mans Curve" all about the mustering fraternity.
I saw one guy doing his preflight checks on the tail rotor with his headset on, the headset wire at full stretch from the cockpit and the rotors running that looked really dodgy to me!!
Still - wouldn't mind having a go.
But I think as others have mentioned, they prefer you to be a cattlehand first and a pilot second.