How do I install an electrical outlet on a live circuit?
I remember back in my college days, having a badly damaged outlet plug on a built-in dresser/vanity right above my bed (the face had cracked away exposing the metal contacts for the hot and ground). My solution, not needing the plug at all, was simply to tape over it. However, had I put in a maintenance request, let's assume for a second that the most granular breaker circuit available would still shut down half the dorm floor and so it normally wouldn't be done.
How then would an electrician or maintenance guy attempt to replace the outlet while keeping it live? Obviously the average joe working on his home wiring should ALWAYS kill the breaker (because otherwise he can kill himself), but if you HAD to work on a live circuit, as a professional electrician, how would you prepare/protect yourself?