Found another great application for the rear fogs
In unilluminated areas and at night, switching the rear fogs on provides additional/auxiliary lighting to the factory backup lights. This is more beneficial when you have heavy tints on your back glass/windows.
Just another trivial use for these....aside from the proposed and obvious blinding and annoying of drivers behind you...
Seriously, I had a chance to use them in a sudden heavy downpour with very limited visibility. Awesome mod for the money