The walks we go on twice a day tend to be an exercise in avoidance. We try to avoid things the dogs will eat, bark at, bite or chase. It means, for the most part, we are on the look out for all manner of dangers. However, there are some things we cannot be prepared for. Occasionally, the dogs will take offense to something we had not foreseen.
Like the mailbox in the shape of a pony. Or a fake rabbit sitting on someones' steps.
Apparently, inanimate objects are TERRIFYING.