Your rights in the workplace is dictated by your employer, not you. You have the right not to work there. When you are actually working and living with others 24/7, as a fireman does, then you need to consider the rights of everyone and not just yourself. Anyway, that is just common sense.
Even if you hate Obama with a passion, the toilet paper thing was just crude and vulgar. Now if the guy what just using this as his personal stash of toilet paper, then whatever. But, I'm sure he put it in the bathroom that all the other firemen were using. Ha, Ha. The joke is on him.