The CIA

The director hands the gun to the 35-year-old and says, "Go into the room and kill your wife." The 35-year-old goes into the room, comes out after five minutes, and says, "I can't do it."

The director hands the gun to the 45-year-old and says, "Go into the room and kill your wife." The 45-year-old goes into the room. Three shots ring out, and then there's the sound of scuffling and fighting.

The director runs into the room and sees the wife dead on the floor. He says, "What happened?"

The 45-year-old says, "Some idiot put blanks in the gun, so I had to choke her to death!"