It sounds like a scene from a wild west movie, but it's happening, someone's horses are on the loose! 

 

It gives a whole new meaning to the phrase "hold your horses."  Okay I'll stop with the horse jokes I'm sorry.  But in all seriousness, I'd freak out if my dogs got loose, so I can't imagine if it was an animal much bigger and faster than my dogs!

But really, keep your eyes open, and be careful driving!