Had a guy do that with ridge vent on a house. I hired him because I didn't have the time to do the roof, not because I didn't know how.
Hey, if the dog wants to drink what's in there, more power to him.
I've seen this happen with a sawzall on 200A service. It was certainly worth watching, but I wouldn't recommend doing it. And no, it wasn't me running the saw.
So that was Stallone on the ladder a couple posts back.