The unique sound of the racking of a shotgun will give a mob pause unless they are drug addled.
This was an unloaded single shot bolt action 410 and I didn’t have any shells, the only thing working in that situation was my demeanor and convincing them all that they did not want to be the one receiving that one shot and that they needed to put my stuff down and melt away into the night.
Focusing on the belly of the seeming dominate one of the four and convincing him to make his friends comply seemed to do the trick.