Speaking of that Star Wars cantina scene, I was in a local watering hole popular with bikers (and which on any given day shares a number of resemblances to that famous bar) when a guy came in wearing a full motorcycle helmet with the windscreen down. He just stood there, waiting, without taking off his helmet or even flipping up his visor like, oh, about 100% of motorcyclists when entering any establishment. Because. Etiquette. It was busy at the counter, so he waited like that. Helmet on, visor down. Everyone nearby got a little quiet except for all the dogs, who went nuts. It wasn't until a tiny, mega tatted/pierced biker told him he was freaking out the dogs and could he please take off his helmet that he did so. Grudgingly. When the dogs could SEE HIS FACE - and likely sense the collective relief of the people around them - they settled down. The guy remained totally oblivious and a little miffed.
The thing is, we've all got to "Share the road" in public places and this is why as a society we need rules and guidelines and, failing that, some common sense as a courtesy to others.