What real life bad habits has programming given you?

I keep telling my girlfriend that cleaning up the apartment before we analyze which parts of the mess bother us most is premature optimization. Somehow she is not convinced :-/

All my bad habits are hidden behind a clean, stable public API.

Um. Thinking mostly internally in code metaphors and then isomorphing that to a relationship conversation. Yeah, that doesn't usually work out so well for me.

Putting ';' at end of sentences, writing 'goto' instead of 'go to'

Eating too much. Exercising too little.

Attempting to refactor the universe.

"I'll fix it later"

sleeping during the day

thinking 256, 512 etc as special numbers :|