Fred and Jim are having a quiet beer one night 
when Fred announces that he's going to divorce 
his wife. "Good grief" says Jim, "You and 
Jennifer are the happiest couple I know - why on
earth would you want to divorce such a lovely 
woman after all these years of obvious bliss?" 

"Well" replies Fred, "Truth be known I'm just 
bored with pokin' the same hole night after night
after night. I guess I'm hankerin' for a bit of 
variety." 

"Well", said Jim "if you want variety, why don't
you just, you know, turn her over every now and 
again?" "What?" says Fred, "and have a house full
of kids?"