Grab his cock.

Dispite the danger you decide to act. You grab his smelly cock and deepthroat it as quick as you can. This causes him to moan and drop the gun as he grabs you by the hair and adds. "Oh you dirty slut."

The bartender siezes this opening and grabs the gun and points it back at him and looks pissed. "Nobody points a gun at me asshole." He hardly even reacts as you suck his cock vigerously. Seeing this she decides.