Money Management

One day, a guy arrives very late at home and his wife asks him immediately where he's been.
The husband says: "I've been at the Tatoo Salon".
The wife shouts: "A tatoo? You're completely nut!"
She continues: "And where have you been tatooed?"
He replies: "I had a 50 dollars bill tatooed on my penis"
"You're the king of assholes! Why did this crazy idea came through your missing neurons? Why this GODDAMN STUPIDITY?"
The man, cool and relax, answers:
"For three reasons:
first: I like to see my money grow and become bigger;
second: I like to play with my money;
third: from now, you can suck me 50 dollars anytime you want!"