My brother feel out two years ago. His walmart climbing stand broke. He fell about 12 ft, he was climbing down so when the cable on the seat portion broke it dumped him backwards out of the tree. He broke most of his ribs in his back, his collar bone, collapsed lung, and fractured his vertebra. He was lucky he was close to the house and we got to him quickly. He recovered but was out of work for months and still has pain. We always wear our safety gear now. Google tree stand accidents, they are far more common than you think.