Given your demonstrated propensity to argue - right or wrong - and to insist on having the last word, the only thing that surprises me about your response is that you took so long (Ariane was right on time). Again, "put your money where your mouth is". There's another old saying, "Never argue with a fool. A listener or observer can't tell one from the other".
By the way, the kid that bags my groceries "works in retail", as does the kid who works the third shift at Seven-Eleven.