Sam is a new member of a golf club, and hooks up with a threesome one day ... the other three guys like Sam, and he plays about the same game, so they ask if he would like to make it a regular forsome ... He says "sure"... next week at 8AM, but I might be 10 minutes late ...
Next week Sam shows up right on time ... Weeks go by, and sometimes Sam plays right handed, and other times he plays left handed, and every week he says "Next week at 8AM, but I might be 10 minutes late"...
Finally, one of the guys says to Sam " What is going on? ... one week you play righty, another week you play lefty, and every week you say you might be 10 minutes late, but you're always on time... what's the story???"
Sam says "Well, when I wake up, if my wife is sleeping on her left side, I play left handed, if she's sleeping on her right side, I play right handed" ... His partner asks "What if she's sleeping on her back???"
Sam says "Then I'll be 10 minutes late!!!"

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