I brought a bottle of a 2012 I Balzini Black Label, Cabernet Sauvignon and Merlot, to dinner at a local restaurant. The waiter came over and said, "Looks like we'll be drinking well tonight." I thought, "What do you mean "WE""?
I do, sometimes, offer a taste to a waiter, but that's my choice. I am sure this waiter, who I new from a prior position he had at a different restaurant, was just using the royal "WE", but..... Do you typically offer the waiter/server a taste of the wine you bring to the restaurant?