Mr. House, Overlord of New Vegas, and Operator of all Lifealert systems.
A new quest, You finally arrive at Lucky 38, you enter an elevator to the top floor. You hear a grumble from the room that seems to be a bathroom. You walk in to find Mr. House lying in his own piss and water, trying to reach a button near the sink.
He crys out: Help me , Push my Life Alarm!!!!
You now have the choice to press the button or not.
If you do , A securitron will come to pick him up.