Bunny

Okay, for those who are not familiar with the term 'plot bunny', here's a quick definition:

plot bunny: A tempting idea for a story that hares off into strange territory upon pursuit. Known for breeding rapidly and dividing a writer's attention to the point of achieving nothing at all. (Thanks to unword.com.)

I usually get little plot bunnies, but they don't fully develop. Maybe this is one of those times. It's just such an interesting topic for me.