This document contains a list of 21 reasons why Chuck Norris is considered the toughest man on the planet, presented in humorous anecdotal form. Some examples given include that Chuck Norris once strangled someone with a cordless phone, sharks get scared during "Chuck Norris Week", and when Chuck Norris turned 18, his parents moved out. The document aims to portray Chuck Norris as an exceptionally tough and formidable person through exaggerated jokes and stories.