Wow- hilarious! As for Libby, you can count her out. Last time Dan babysat, he took her for a walk out in the country. They were on a path, and when they came around a corner, they found a horse standing in their way. Libs ran around behind Dan, leaned against his legs and shook. Then, she peeked around and offered her paw, just in case the horse wanted to shake hands. The horse neighed and Libby yipped and jumped up into Dan's arms. She hid her head on his shoulder and put her paws around his neck, and he had to carry her home.
Apparently, you can only herd small things, like spiders, and Yorkies.
Cindy