I agree. The only thing worse that losing a client that is that obsessed with table manors is winning that client.
How long before some crazy "outrageous offense" of some sort happens to ruin it later. Life is too short for that.
Treat people nicely and show them respect. That should be enough for business. Elaborate mating rituals are for Romance.
Mebbe that's what the feller in #46 was experiencing...