Hi everyone! I have a 13 week old vizsla pup, and we're having some difficulty on our walks. For the first 3/4 of our walk, she does GREAT. She'll respond when we tell her to look up at us, sit when asked, etc. However toward the end of our walks (or after getting to meet another puppy on the street), all of a sudden something happens and her behavior completely changes. She starts lunging at my ankles, nipping, thrashing around and grabbing the leash in her mouth. When this happens I either attempt to redirect her into a sit (which sometimes works), or pick her up and walk her home since it's typically only a block or so away from my place. Unsure if this is a common behavior, and if this has happened to anyone what you did to help resolve it. She does not seem to respond to a firm no when the behavior begins. TIA!