I work in a factory and people sometimes bring their dogs in (not on the factory floor of course but in the office side or other rooms where they can safely be - today there's two in the women's shower room) and I love it so much as do many others. But I suppose there's a chance there's some people in the building that don't like dogs/scared of them/are allergic so don't like it, though no one has complained yet.
Most of the factory is on holiday this month so I am strongly encouraging people to bring dogs in while its quiet and less people to potentially be bothered, so I can get some canine cuddles when I need a break from work.