![Dinosaur Comics: The Regret Index](http://townsquare.media/site/622/files/2009/05/trex-dino-200.jpg?w=980&q=75)
Dinosaur Comics: The Regret Index
There was a certain Dinosaur Comics strip some time back where T-Rex talked about asking lots of people what they did and didn't regret doing in their lives, and creating a "Regret Index" for each possible action so he'd know how likely he was to be sorry...