Garage door opener wire hazzard?
I have a garage attached to my neighbors. At one point there was a garage door opener wire (red yellow blue green in one cover) that passed through the cinder block wall between the garages. It now dangles on my side, cut and not attached to anything.
Im concerned that this might be a hazzard?
I had my son look at it and he said not to worry, he put this pen he has that detect current, it didnt go off. He then sprayed some expanding foam to seal the gap in the cinderblock.
Should I be concerned with this?