The bitey one is really being optimistic

If I was a dog, I'd be frickin worried for all my buried bones too if that came on my territory.

He should have smashed one just to make a point to the other

If I were those people, I'd have felt much safer. If those dogs'll take on a giant, rumbling piece of machinery, when your vacuum cleaner goes nuts, it's toast.

The excavator isn't standing its ground well enough.