I suspect it would be a heck of a lot LESS dangerous than crossing a street in most major cities in the US.. I'm sure it would be MUCH less dangerous than walking down the street unarmed in many urban neighborhoods..

Sounds kinda odd to me, but if you want to do that, have a ball..Your risk of being eaten by a bear will be much less than the danger of falling asleep, having your safety harness fail, and falling out of the tree..