I think that there's definitely something to be said for the licensing of lethal hots, but I don't know that we really need to license the keepers of those that aren't lethal under normal circumstances (ie., not to someone who doesn't have a severely compromised immune system).

As far as dogs go, pit bulls are too often kept by ignorant people who don't raise them properly. If people want to keep pit bulls or other lethal dogs (such as the ones that killed that woman in San Francisco), then I think they ought to be willing to pay an annual licensing fee that would cover the cost of training the people and the dogs and periodic unannounced inspections. The only responsible pit bull keepers I've ever known personally were vets, and I think that's fine, but people like my idiot ex-neighbors whose dogs were neglected, unsocialized, cat-killers shouldn't have been allowed to keep them.

I also have no use for teacup or toy poodles, but standard and and miniature poodles are very smart dogs typically very good with children. We had a pair of miniature poodles when I was little, and they were great dogs. Poodles are one of the best breeds as far as problem-solving and training and can be good working dogs in just about any capacity.