Dog vs. mail carrier: it’s a battle as old as time. These two natural enemies have faced each other countless times…and usually the dog ends up the victor. The last thing a mailman wants is to be chomped up by an angry dog, so they usually retreat.

But this man filmed his dog doing something insane, especially if you know the history between these two rivals.

You’ve won this round, lady, but I wouldn’t rest on your laurels if I were you. There’s probably a less than obedient dog next door, so get your guard up.