A Good Loyal Friend

A man approaches his best friend's wife one day when her husband is at
the office. "Will you have sex with me?" he
asks. 
"No. My husband wouldn't approve." 
"O.K. What if I give you $1000?" 
"Well, for a $1000 I think I will. Come back tomorrow afternoon when my
husband is at work." 
So the man shows up next day and slaps $1000 on the table and they do
whatever it was they did(!!!). In the evening
her husband comes home a little distraught: 
"Was my best friend here today?" 
"Y-y-yes." his wife says with concern. 
"And did he leave $1000?" 
"Y-y-yes." she says expecting the worst. 
"Oh good, what a great pal he is. He came in this morning and asked if
he could borrow $1000 from me and
promised to return it this afternoon!"