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Q: My dog has this weird habit of lunging at people's feet when I walk him on the street - but he does it only once the person has passed. What is this all about?
A: I can imagine how stressful this situation must be for you, especially when you're just trying to exchange friendly greetings with someone like a neighbor.
SEE ALSO: Why Does My Dog... Stare at Me?
There are a few reasons your dog could be displaying this behavior.
Instinct: Canines with herding backgrounds are notorious for nipping at the heels of other dogs, sheep, horses and even people. Border Collies and Australian Shepherds, for example, are known for exhibiting ankle- and heel-nipping behavior, which can show up in puppyhood.
The behavior is usually brought on by fast movements or walking away from a dog with your back facing him.






