Sandwich Moment 

An empathy-inspiring moment when you witness someone in a lonely, sad, or hopeless situation. Usually when one is down on their luck.

Look at that old man sitting alone in the movie theatre, eating a tuna sandwich he bought from the gas station with the last three dollars of his pension... total sandwich moment.

Sandwich Moment by Black Bean and Rice November 14, 2012

Ham sandwich moment 

The point in a House M.D. episode where Dr. Gregory House solves the puzzle and finds the one missing piece that saves the patient's life. It usually occurs the minute a patient is about to die, resulting in House bursting into the room, making an incision, pull out a live animal (sometimes), and curing the patient of their affliction.

This was named for the Pilot episode and episode 314 (Insensitive) in which a ham sandwich provoked the moment.

House Fan 1: "Why does he keep looking at the hair behind her ear?"

House Fan 2: "Oh, this is it! The ham sandwich moment!"

House Fan 1: "Look at that, the cheap hair color solution she used had chemicals that mimicked hormones, which caused her to be sick."

Ham sandwich moment by Oreopie January 20, 2009