Dogs as fashion accessories are never a good idea.
I have stated my dislike for small dogs in general. Only a few breeds developed for very specific work purposes are worth and still none I would care other than a Bull Terrier. And then we have somebody with an unsecured and untrained Pit Bull. Drama ensued and the obligatory visit to vets, probable police reports and general good time ruined because both owners had to strut their fur rolexes for all to see.
Same as with guns, you need to take full responsibility and know your dog. Never stop paying attention to the animal and your surroundings (including other dogs or animals), learn how to read his every move and prepare to change behaviors as needed.