Oh, that is good to know..I would squirm trying to touch one.
I remember seeing lots and lots of tent caterpillars when we were in Kenora, a small town in Ontario, Canada, all those creepy crawlies everywhere, covering outdoor walls, tire wheels, benches, hanging from trees..makes you squirm looking at them. I do not know how they remove it..or maybe they just try if they can, such a huge army of those caterpillars.