It is obviously human error. Any owner of cats, savannah or other, know, that if you put a tree in the house, the cat will climb it. That's why they are called cat trees!!!! If human doesn't insure that the tree is stable and won't fall over if any cat or cats, climb it, it is not the cat's fault but human error, error, error. Our Christmas tree, is in a room cats can't access. It is not any of the cats fault, it is your fault. Entrapment comes to mind. You are the guilty party, knowingly that cats climb trees, and then installing an unstable tree where they would and will climb it, plus putting enticing cat toys on the limbs that, well, you are guilty man, don't blame them, blame yourself. You are the lowest of lows, blaming others fur you indiscretions. Shame on YOU!!!!