Or so says the "Three out of four doctors association".
[quote]
Nomadic caveman wandered into new places on earth, but when it got cold,the smart ones got the hell out. Those who were too stupid to leave stayed and froze their asses off.
[endquote]
Read all about it [link|http://www.onepaper.com/islandmelee/?v=d&i=&s=Humor%3ALocal&p=1543|here].