A man comes to see an incredibly successful assassin who was known to charge $10,000 per bullet. "Are you the guy who charges $10,000 a bullet?" He asks him.
"Yup."
"What if you miss?"
The assassin looks at the man, very serious. "I don't miss," he hisses.
"Okay, okay," says the man nervously. "Well, I've got $20,000. I just found out my wife has been having an affair with my best friend for years! They're at their usual motel right now."
"Let's go," the assassin says.
So they drive to a store across the street from the motel and climb up on the roof. The assassin takes out his rifle and attaches the scope.
"They're in room 21. I want you to shoot her in the head, and I want you to blow his penis off."
The assassin looks through his scope. He keeps staring for several minutes, not taking the shot.
"Well? What are you waiting for!?" the husband asks impatiently.
"Hold on a minute," said the assassin, "I might be able to save you $10k."