He wasn’t sure whether to keep his eyes on the clock, wall, or his slowly emptying coffee mug, so he just cycled through the three. Clock, wall, mug, clock, wall, mug.
“Can I top you off?” He looked up nervously at the waitress, sliding the mug toward her for an easier pour. She walked away, only the corner of her mouth trying to fake a smile.
He looked at the clock. Soon it’d be time. Another mug of coffee.
That’s when he’d rob the place.
Of course, that’s what he said four mugs ago.