The theme for Ludum Dare 33 was 'You are the Monster' - I went into this compo unprepared, and had no real concept as to what I wanted to do. The first day was spent working on something along the more obvious route, you played as a monster, and wandered around a city breaking stuff. It wasn't really enthralling, but I was happy enough with it.
Slaving away at the code, my mind clicked - what if "You" didn't refer to the player's presence in the game, but the player themselves. Here was the seed to "Beagle" - coupled with a particularly touching video from the Beagle Freedom Project.