I treed a woodchuck the other day along the Musconetcong River. I must have surprised him, or blocked access to his hole. Otherwise, I don't know why he would have gone up there. I could have just waited at the bottom of the trunk for him to get tired (if I really wanted a woodchuck)! After about 5 minutes of taking pictures of him, he made the bold move of descending the tree with me standing about 15 feet away. Right then, I could have run up an grabbed him (and gotten some nasty scratches, I think), but I squelched my animal instincts and let him disappear into the brush. By the way, I'm not the first to have this urge! In one of the stranger parts of Walden, Thoreau expresses the desire to grab and eat a woodchuck, raw.
A bold exit.