Joe,
I have seen the "back wrap" method of grounding. I have seen the farmers, 3-way switch, the ground wires bolted on the outside of the box, the Knob and tube (K&T) wiring, and the running boards, etc. However, ( And I wish I had a picture of it.) I did see a tuna fish can used as a splice box for K&T wiring. The homeowner thought that after lunch, ( a tuna sandwich, I guess) he cleaned out the tuna can and cut notches in it, then installed it around an open "T" splice in his attic around the K&T splice. I also saw an engineer argue with me that his job was OK. He ran a 14-2 RX wire from one switch to another to create a new three way switch. However he ran a yellow #14 THHN wire along side the RX. That made up his third wire. It just makes you shake your head and laugh.
Caper
