The other morning Millie was driving me a bit nuts by barking at something on the other side of the fence. She's gotten better about barking at things, but if someone next door moves their trash can or the gardeners come into their yard she still barks barks barks. Because scary!
This was a little different than trash can noises/gardeners in the yard barking, though, she was standing at one part of the fence barking sharp little barks, then scratching at the fence, then squeezing her nose underneath. I kept calling her in but she kept going back because whatever it was over there really needed barking at.
Scary terrifying furry slippers!!