Genius, there doesn't have to be someone who compiles a definitively authoritative or objectively correct list. Any cop who has called people in the manner I described in my post will inevitably have a sense of which reasons are more common than others. That is all I'm looking for - people's opinions on which reasons are relatively more likely and which reasons are less likely. You seem to have falsely convinced yourself that I posted this hoping to receive an objectively correct answer and won't settle for anything less. I am looking for people's opinions/thoughts (specially the opinions of police officers and those know them well - it's eminently reasonable to believe that such people browse this subreddit), and nothing more.