Just this past week my almost 2 year old cairn terrier mix has started to act aggressively towards me and grab my forearm with enough pressure that I feel the bite. I have used a stern voice and pushed him away then stood up and ignored him (arms crossed and no eye contact) He still jumps up at me a few times and nips at my arm before finally stopping.
Is this a good approach? any ideas, this is NOT acceptable.
Kate