This is the case when a person does not eat pork, and behaves worse than a pig. I have such force was sent to work on a pig farm. Until then, until it becomes nice and polite.
I already stopped eating pork for almost 2 years. But it doesn't mean I disregard myself from the people who eats pork. There are many religions who believe that eating pork makes you unclean. It is a matter of how deal with other people. If you're not eating pork and yet your lifestyle or habit is really not good, I think its time for you to think whether you're in the right track of living. Discriminating other people just because you are not eating pork or your ways are different from them makes you worst than you think you are not.
There are different types of taboo foods for different religions and sects. For example pork is banned for both Muslims and Jews. Similarly, beef is an ultimate taboo for the upper caste Hindus.