[quote=@Double]
Shang just dashes 50ft to put himself in a position that blocks retreat and then... "politely" asks everyone to put their weapons away or to take the fight outside.

Shang is able to dash over tables (which I interpreted as difficult terrain) because he has the Mobile feat, which allows him to ignore difficult terrain when using the Dash action.
[/quote]

Nice. Alright then,

I would like a Persuasion or Intimidation roll for the request, please. ^_^