(See the video below.)
According to the New Zealand Herald, helicopter pilot Greg Gribble was helping to install a seven-story Christmas tree when it appears the rotors became entangled in the cables holding up the tree and the chopper plunged to the ground. Gribble was flung out of the helicopter door, and then fell back in a separate door. He barely missed the rotor blades.
(H/t The Atlantic Wire)