As libertarian I don't recognize that the government has any standing to dictate how a business is run or how they treat or pay their employees. If you want a bathroom break, and the employer won't allow it, get another job. It's as simple as that. Don't be a cry baby and expect the government to step in and do something about it just because you don't like it. Get another job that suits your needs and expectations. And if the business can't find enough people to work under the conditions and the pay they are offering, then they will have to change in order to stay competitive or go out of business.
On the other hand, if you're a customer and don't like the way the company is being run, take your business someplace else. Anyone who is outraged by the way B&H (allegedly) treats their employees and yet still does business with B&H is a complete hypocrite. You should put pressure on companies to make changes by not working for them or doing business with them -- not by getting the government to be your mommy.
There are many companies that I choose not to do business with for various reasons, but I respect their right to run their business as they see fit.
Why don't we let the free market determine what working conditions should be, what people should be paid, how much products should cost, and which businesses ultimately live or die? Or we can just keep going down the road to socialism and cradle to grave day-care for all.