Answer: Some superstitions that some people in America have are: if you hold a frog with your bare hands, then you will have warts; dangling a ring can help future mothers figure out the gender of their baby; and if the groom sees his bride in her wedding dress before the ceremony, then they will have bad luck on their wedding day.
Some irrational fears that some people in America have are: the fear of dental check ups, the fear of needles, and the fear of blood.