Joke

Two avid fishermen, Jim and Jack, buy the same identical new fishing boat.

Every day for about a week Jim catches a lot of fish while Jack doesn’t catch any.  Finally Jack asks Jim “how it is that you’re catching so many fish when I can’t catch any?” 

Jim says “It’s easy.  When I wake up in the morning if my penis is lying on the left side of my body then I fish from the left side of the boat.  If my penis is lying on the right side of my body then I fish from the right side of the boat.” 

Jack asks “And what if it’s standing straight up?” 

Jim says, “Then I don’t fish!”