When it comes to public freakouts it can sometimes be hard to tell who's in the right and who's in the wrong. Selective videos can paint anyone as the bad guy so it's best to reserve judgment until all the facts are in. 

The exception to this rule of course is if someone is yelling at a service worker, either someone in retail or a teenager behind a fast food counter, the person accosting someone just trying to do their job is 10 times out of 10 the bad guy. 

Take this dude for example who was filmed yelling and threatening a teenage cashier at Del Taco. You don't even need to know what he's yelling about or why he's angry to know that he's the bad guy in this situation. 

They used to say the customer is always right, but kids these days know better.