Have you ever wondered why when an infant burps after their morning bottle we all think it’s so cute? Yet, forty years later, the same guy belching after his eighteenth tallboy is absolutely disgusting? Why does a case of unbridled hiccups crack up everyone at the dinner table, but a well-placed air biscuit can clear the room? Like most other societies, American customs have resulted from generations of rules, laws, faux pas and in some cases, no reason at all. Many of our customs date far back before you were even a twinkle in your mother’s eye. These were times of unsophisticated knowledge and religious beliefs. Mores and values were…