Some years back I had heard of some guys using Romex connectors for that, then I ran across some that had been taped, and missed by the PoCo for a permanent tie. It constantly amazes me what electricity will and won't do, under almost the same conditions.

But speaking of crazy things done, years ago I re-connected a 200 amp service to a hot drop bare-handed, in a pouring rain, on a wooden ladder. I remember being scared to death, using a razor knife to skin the wire, but the boss told me to finish the job or find another.