I live in a condo/apt. Two of my three prong electrical outlets were not showing up grounded when I plugged my surge protector in. I think from lightning or something. I need to plug computers and an air conditioner in, so we called the superintendent. In the end, he came over with some wire from Canadian Tire and attached a ground wire from the one good electrical outlet to the other one outlet. The wire he attached goes around the walls of the room like a cable wire to the other outlet.
Since he has done this, I keep noticing weird lighting on peoples faces when I watch T.V., but I can't put my finger on it.
Should he have fixed the problem using a ground wire from a good outlet, to fix the other two? Is it safe? Can it cause problems with my T.V. or other electrical equipment?