When I'm drunk, I go into Johnny Depp mode (aka Hunter S. Thompson/Jack Sparrow mode).
When I wake up the next day, I'm in groundhog mode, I want to crawl into a hole and not come out until spring.
When I'm hungover, I'm in robot mode, I tell myself things like "left, then right, left, then right, step, another step, walk straight, approaching destination, open door, enter."
When I tell myself never again, I'm in liar mode.