Thirteen. 13.

I think the negative publicity around this number started when an Egyptian first hit this age and discovered puberty.  What could be worse luck than suddenly becoming interested in members of the opposite sex and having your first pimple both at the same time?

Here's something to ponder.  There are approximately 600,000 elevators in the US.  Due to superstitions surrounding the number 13, most of them have opted to skip the 13th floor. Now I ask you, by simply failing to display that number on the elevator panel, have we somehow eliminated the number from existence?  Isn't the floor labeled 14 really the 13 th floor?  Does that fool anyone?