None of these questions are stupid. They’re designed to elicit information that you wouldn’t ordinarily provide and to provide somewhat of a profile on you.
#1: This is to see if you are judgemental and jump to conclusions. How do you know the person is guilty? What are you basing that on? #2: Criminal past that he’s not telling us about? Unable to move forward? Acts out impulsively? Fights? #3: Loudmouth? Aggressive? Opinionated and overbearing?
These are all personality traits that would be undesirable in a customer service position.