How to keep CB magnet mount from scratchin paint?

When I first got that mess going, I was trying to "tap" the loading coil for the "best match' (SWR). I had the radio locked in transmit, with the power turned down to minimum, and the swr meter propped up on the dash. I was out back trying to read the SWR reflected power through the back window, and "tap" the correct part of the loading coil with an alligator "clip lead" and a pin, poking into the coil turns.

"RF BURNS"

THE THING IS, loading coils and antennas can generate VERY HIGH RF voltages, even at low power settings. I "pulled an arc" off one finger, and the RF DRILLED A HOLE down into my finger, WHICH HURT LIKE HELL for WEEKS ON END!!!!!