re: It just doesn't make sense....Why can't people understand?

I get what you're trying to say but it's way too vague. Each incident is different, as in:

What are you doing to summon the police?

Are you in an area known for criminal behavior?

What types of crimes are prevalent in that area?

Are you a convicted felon?

Are you on parole/probation?

If you feel like your rights were violated or if you were arrested for no reason, there's a court system to handle that. Shocker I know.

I could go on and on, bottom line is to simply cooperate with the police and you'll minimize a bad ending.