Yesterday night, the dining hall was absolutely packed. I was sitting, momentarily alone, when a random guy approached me and stood next to me for a culturally awkward period of time. Finally, he spoke.
Him : "Hey, can I take this chair?"
Me : "...you mean, can you take the chair I'm sitting in?"
Him : "There aren't any other chairs."
Me : "No. You can take any of the other chairs at the table. I'm using this one."
Him : Pulls one of the chairs out and brushes the seat cautiously, then glances at the table "Hey, Grey Poupon! Oh man, and the top hasn't been popped yet, so it's still fresh!"