How about … I don’t give a shit

From ScienceDaily:

The stimulatory effects of caffeine may be nothing more than an illusion, according to new research that shows there is no real benefit to be gained from the habitual morning cup of coffee.

I’ve noticed when I’m out of my normal workday routine, like on a vacation, I get headaches from what seems to be coffee withdrawals. Then I find myself a cup of coffee and boom – headache is gone.