Big parties not welcome. Don't come here if you have a big party where more than person is paying... they don't split checks more than two ways. Per the cashier this is a restaurant policy. They don't warn you verbally, but apparently it's somewhere on the menu. Hope you see this owner and change this unfriendly policy.
Edit: The waitress and the cashier played this fun game of "maybe the other can do something to split your bill."