Arguing Semantics

According to the advertisement the local supermarket had cantaloupes on sale, but I didn't see them anywhere.  So I asked a person working in the produce section where the cantaloupes would be.  He pointed to a large bin.  I went and looked, but the bin was empty.  I went back and said to him "there aren't any cantaloupes there!"  to which he responded, "Well, you asked where the cantaloupes would be.  That's where the cantaloupes would be if we had any, but we don't, we're all out."

I did not expect a lesson in semantics at 10 at night in the grocery store!