When I was a climber for a tree company in my 20’s my buddy Todd and I were on the way to a big climbing job and it was his turn to climb that day. Gave him a dip of Copenhagen enroute and, being a non smoker, he was so messed up I ended up having to climb the first couple of trees. There were times when I was quitting smoking where I’d cheat and have a smoke while wearing a patch and had a dip in. Not good.