I used to open cans with the small blade on a jack knife. Fishing when I was a boy. That didn't help the blade any. I remember my Dad telling me to stop doing it. He carried one of those tiny folding army can openers (P38). I found his old army issue can opener a while back. I will post a photo. I don't really like any of the Victorinox can openers. The Leatherman and old Wenger types work better for me. Best wishes. G
PS The electrical system mishap was nothing memorable. Some sparks and probably a profane word from me, then on with the work. I looked at the blade on my GAK yesterday. Still has the little groove in the back side of the main blade. Probably the only reason I remembered the incident. G