A man stopped to relax at his favourite pub after a hard day's work. He noticed a man next to him who ordered a beer and a chaser. The man drank the beer, then drank the chaser, then looked into his shirt pocket.
He did this several times before the man's curiosity got the better of him. He leaned over to the man and said, " I couldn't help but notice your little ritual, why do you look into your shirt pocket every time you drink your beer and chaser?"
The man replied, "I have a picture of my wife in my pocket, and when she starts looking sexy, I'm heading home!"