The difference between a dog running after the mail carrier and a human hounding the same worker is that we, as a species, have the power of higher reasoning. A dog isn’t going after a mail carrier because he or she didn’t bring an expected piece of mail as dogs operate on instinct and also because dogs don’t usually get mail. The point is: It’s not your mail carrier’s fault if that check hasn’t arrived yet, so use the human power of logic and chill out. [More]