A joke

There are 3 people, Trouble, Shut Up and Manners. One day, Trouble was missing. Manners and Shut Up wanted to launch a police report. However, Manners wanted to visit the toilet first. So, Shut Up waited outside the toilet for ten minutes... twenty minutes... one hour and finally decided to go launch a police report himself.
Policeman: What is your name?
Shut Up: Shut Up.
Policeman: Where are your manners?
Shut Up: In the toilet
Policeman: Are you looking for trouble?
Shut Up: Yes