Movie failing to rescue the car

I pulled the car which I could not move with on the snow with another one, but I wonder if the direction of pulling is bad or slower ...

Details are as follows. I should have given up where I thought it was failed, but since I pull it further, the rear of the car has been damaged.

Stupid Way To Save Your Car - Google Video

Is it better to call a professional from the beginning?

Speaking of failure to rescue a car, there was also such a thing.

On Off and Beyond: · cars, cranes · · ·

·bonus
As a good way to protect the car, I am wearing a cover that simulates an on-born car in a parked car. Surely this may not be the case.

Good idea to Save ur Car - Google Video