IMPOSSIBLE QUESTION:
18% of all people wish they could change this about their significant other; what is it? 

It has nothing to do with their significant others appearance. 
It’s something that he or she does 
It’s something he or she does naturally 

ANSWER:
18% of all people wish their could change their significant others laugh!    

Congratulations to Scott Griffin of Cambridge City, IN for being the first to answer the Impossible Question!