Maybe you don't like your job, maybe you didn't get enough sleep, well nobody likes their job, nobody got enough sleep. Maybe you just had the worst day of your life, but you know, there's no escape, there's no excuse, so just suck up and be nice.
Sometimes the beauty is easy. Sometimes you don't have to try at all. Sometimes you can hear the wind blow in a handshake. Sometimes there's poetry written right on the bathroom wall.