You can relax after few thoughts.
Would you put there an electrical connection.
Around here it's always from exit to exit of closed place, with tubing or not.
Old ones are different of course but have you seen any of these inside of anything.
Only possible active connection in there would be water and it is not going to burn very easily.
[Edit]
They say HHO is different.
Last edited by mk; February 23rd, 2017 at 01:01 PM.
Lori and I looked at several houses today.
Must take some back, but it's not here and only a wall.
Didn't remember a story where something invisible was constantly stinging a wall leaning hand.
It was overpainted live plain metal wire.
We are abruptly and unexpectedly close to putting in an offer.