My 6 month old terrier cross puppy was rolled over by a boisterous French bulldog a couple of weeks ago and now seems to hate the breed!!
We've seen two since then and both times he was very aggressive towards them, growling and snarling. This is a side to him we've not seen at all before now, generally he's very laid back and loves everyone!
How do I handle this? Can I train him to at least ignore them?