While loading downed branches in a chipper today, I thought I saw a piece of rope (major hazard!) wound up in the branch and trailing back 40 or more feet. I dropped the branch to investigate and found: https://en.wikipedia.org/wiki/Toxicodendron_diversilobum Yes indeed ye olde burning oak emulating an ivy plant. No less dangerous to have going into a chipper, but still I hemmed and hawed for a while since it had actually set roots in the bark of the live oak limb that I wanted to shred. Finally I got on the far side of the branch from said trailing vine and very carefully watched my feet and fed it to the chipper. But the presence of ye olde burning oak meant a cold shower tonight when I arrived at home. Not pleasant considering the high temp today was something like 55 degrees Fahrenheit. BRRR all day, then because I was working in a short sleeved T-shirt I sort of look like I might have been cutting today… :(