After a rigorous and challenging assessment, three trainee FBI agents, two men and a woman, are waiting their final test. The first is given a gun, and told to go into the room and kill the person sitting there. He goes in but comes out in tears after a minute - it was his wife, and he can't kill her. He hands back the gun and leaves forever. The same thing happens with the second man.
The woman is handed the gun and she goes in to the room. After a couple of seconds, three bangs are heard, and then some time elapses. The woman comes out, sweaty and breathing heavily, and hands the soiled gun back to the envigilator, who looks at her in alarm.
There was something wrong with the gun', the woman says, 'so I had to bate him to death with it'.