From a sociological perspective, social norms are informal understandings that govern the behavior of members of a society. Social psychology recognizes smaller group units, such as a team or an office, may also endorse norms separate or in addition to cultural or societal expectations.
Sewer Odors in Bathroom. DEAR TIM: We recently have begun to notice a sewer odor from only one of the three bathrooms in our house. It might be the toilet, but it's hard to tell. The smell is not constant and some times it is very strong. Everything in the house drains fine, including the toilet with the odor.
Sulfur burps are those which smell of rotten eggs or sulfur. The smell comes from hydrogen sulfide (H2S), a gas which is present in sulfur proteins. Sulfur proteins are present in some foods and emitted after they are broken down in the small intestine or stomach by sulfur reducing microbes.