My mum has got 2 westie pups, one can be rather chilled out and calm but doesn't take any nonsense from the other one. The other one can be rather feisty. Not use to this terrier behaviour, we have been socialising them a lot obviously but it does seem more natural for the 4 month old called Maisy to stand her ground compared to the other one which is called Matty and she is 3 months. I don't want them to be categorised at being the nippy terrier, so they will be going to boot camp AKA training classes. The oldest one went on Thursday and she was great, apart from being a little feisty with he dogs at first. However she soon settled down. She loves learning new things and she was more behaved than the more experienced dogs once I had her attention. What were your terriers like when young and what are they like now?