I'm still astonished, to all those who do bring dogs to work - what do you tell your co-workers who are allergic to them?
"Too bad, take some Sudafed and get over it."
Animals are banned from most workplaces for several VERY good reasons. 1, the employer would be responsible for any attacks your animal made on others. 2, the employer would be obligated to clean up any messes they made - including shed hair, food, plus any unsanitary conditions they might track into the workplace. 3, the employer is bound by federal and state laws demanding the workplace be accessible to anyone - including those phobic of animals and those allergic to them. 4, the employer would have to ask you what kind of stress that animal is relieving that a simple 5 minute walk couldn't? That's not a question you want to raise with your boss as it bring into question your competence as an employee.
Points 1, 2, and 3 are very important. While they can allow their presence in the workplace, they must make certain that the place of employment is stil accessible to those negatively effected by the animal's presence. That's an awfully big risk for an employer to take for such a minimal gain in efficiency.
That's not to say it's unheard of to have animals in the office. I personally worked with a deaf man who brought his dog to work every day - the dog wasn't an official escort dog, but rather his personal companion that warned him of approaching people. Employers will make concessions if the payoff justifies the risk - but on a scale as told in the video, unbelievable.