This was told to me by a prosecutor colleague. It is an actual event (took place some years ago though). I can't remember the exact exchange of words so I have reproduced them as best I can. This took place in a summmary court (in front of a Magistrate).
Prosecutor: "What happened then."
Defendant: "They took me up to their office" ("They" being two detectives)
Prosecutor: "Yes and then what happened?"
Defendant: "They sat me down in a chair in a room."
Prosecutor: "Yes."
Defendant: "And then they started asking me questions. They were pretty angry."
Prosecutor: "How do you know they were angry?"
Defendant" "They were yelling at me and then one hit me on the head with a phone book."
Prosecutor: "What happened then?"
Defendant" "My ear started ringing"
Magistrate, trying not to laugh: "Mr (named the prosecutor) I wouldn't if I were you....."
Prosecutor" (hurriedly) "Did you answer it?"
Apparently the defendant looked quite confused as everyone in court cracked up.