some things are better left unknown
 

an old man and his wife are sitting on the porch.the wife picks up his cain and whacks him in the leg
startled and hurting he yelled agh what was that for?she replied that was for 50 yrs of bad sex.
some time passes and the old man picks the cain up and whacks his wife in the knee,suprised she yelled "what was that for?
he said "for knowing the diference";)

RE: some things are better left unknown
 

If I ever get married I give you all permission to whack me with a cain.