Poor student and retarded boyfriend????

So Brian's favorite restaurant ever is BONANZA. A place where(until i met him) I had only eaten at once in my life. It is popular for it's salad bar which is what the two of us always get. Normally we get pops...I have Diet Pepsi and he has Dr. Pepper(code for both is DP) so the confusion ensues and different numbers of straws are added to drinks to tell them apart. On this day, however, we both ordered waters as we have been working out and eating healthier. Brian proceeded to tell the young waitress that that would be all and so the poor girl crumpled up the bill, handed us our waters and exclaimed that we did not owe any money and could sit in the restaurant wherever we wanted. We were both kind of flabbergasted... uncertain as to whether she was joking around with us or if she actually thought we just wanted to sit in the restaurant and drink our glasses of water.
The big question though in our heads was "Would someone actually do that and has this happened before?" The normalcy that the girl felt with our "only waters ma'am" was what threw us off the most. All in all, we got our salad bar sans soft drinks;) Delish! Immediately following this dinner outing we went to Indigo(great bookstore) where I ran into one of my professors and his lady friend. This lady friend of his was telling me that i was very poised... this is when Brian shoved an entire ice cream cone(which he had taken from the Bonanza salad bar) into his mouth preventing him from entering into the conversation....