@Kristine
I never drank coffee until a few years ago when I discovered it helped metabolise pain killers and thus joined ranks in the battle against migraines.

My normal fuel is carbs. Toast, pasta, sandwiches, poptarts, croissants, bring it on. I suppose that becomes glucose which in turn triggers dopamine so that's how I voted.

On the spite front, I knew a guy who kept a "told you so" folder from when he warned management not to take a given course of action, so he could remind them later.