we might smile nicely and tell you you're heading to 24G
Had a laugh with the CC the other day when I showed my boarding card. He said "Thank you, madam, 2A? That's just at the front of the aircraft on your right." So I, stuck beside him while waiting for the aisle to clear, said "Oh good, you've not moved it then!" He, showing admirable sense of humour for someone who still had thirty or so pax to board said "No, we've left it there. Did you have it last time as well?" I said "Yes, if you look under the seat where the lifejacket's supposed to be, there's a plaque with my name on instead."