I got nothing, but then I was "diagnosed" with red green color blindness. The only time it ever seems to bother me though is in low contrast situations, or when some one shows me a circle full of colored dots. I'm curious whether red green colorblindness is a disadvantage at all. I've found I can see ripeness differences in garden vegetables that my dad can't, even though his color vision is "perfect". I've also heard that people with more severe color blindness can see through some types of camoflauge easier (although I don't claim to be one of them).