Almost thrown off the plane for... doing math

I read the police beat in our local newspaper for laughs. I can’t tell you how many times someone calls the police to report a suspicious looking person walking down people’s driveways (the UPS, or gas company agent) or gang of hoodlums up to no good in a park (birthday party for 10 year olds). There seem to be a group of people who just suspect the absolute worst in everyone and when combined with being a busy body - seem to keep the authorities awfully busy…