Dog trainer names three 'extreme' breeds he would never own - Vet shares five popular dog breeds he would never own including one that's 'aggressive' - Not banning 'ferocious' dog breeds yet, public opinion invited, Centre tells HC - Five dog breeds you shouldn't own as a pet, according to a vet - 8 dog breeds that have the longest life spans - 7 suitable dog breeds for first-time pet parents - 8 popular dog breeds suitable for cold climates - Vet says five dog breeds are best for first-time owners - and one is very popular