happy marriage? sad marriage?

in case you were wondering, there is yet another way to "predict" marriage failure success rates. according to this article on yahoo, how big you smiled in child hood, highschool & college yearbooks determines how successful your marriage will be. inteeeeeeeeeresting... so those who smiled in the top 10 percentile [strangely enough] had higher rates of staying happily married & not getting divorced. shocking, just a little. well, i guess i know what i'll be asking potential candidates for: yearbooks pleeeease.