Because sometimes periods, commas, colons, semi-colons, dashes, hyphens, apostrophes, question marks, exclamation points, quotation marks, brackets, parentheses, braces, and ellipses won’t do.
Read the full text here: http://www.mentalfloss.com/blogs/archives/144712#ixzz28dXYeOZK
--brought to you by mental_floss!