This is one emotional rollercoaster of a comic strip. But we wouldn't expect anything less from The Oatmeal!
You may recall some of their other hilarious comics, 'Having a Baby vs Having a Cat,' or 'How to Walk a Human Being (a Guide for Dogs).'
Both instant classics.
Domino, on the other hand, is more of a legend. A cat who is unique, with a derpy face and constantly drooling -- the story of Domino will be told from generation to generation.