Are blasters allowed in the Mos Eisley Cantina?
In the original Star Wars, there are two gunfights that take place in the Mos Eisley Cantina. The bartender's reaction to them is dramatically different.
First, Ponda Baba and Doctor Evazan pick a fight with Luke. It escalates, and Ponda Baba pulls a blaster, but before he can shoot, Obi-Wan cuts off his arm with a lightsaber. When this happens, the bartender literally dives to the floor, while shouting "No blasters!" (according to the subtitles).
Later, Greedo confronts Han at a table - with his blaster out and pointed at Han from the very beginning. Nobody seems to notice or care. Eventually, they both shoot and Greedo dies. As Han leaves, he tosses a coin to the bartender, who seems to have barely taken notice.
Are my subtitles wrong? Did the bartender actually react to the lightsaber and not the blaster when he dove behind the bar?
Or are blasters actually forbidden? And somehow nobody noticed Greedo's blaster, and the shots were such a surprise that nobody had a chance to react?