The second episode of the new Mental Floss video series Scatterbrained is all about Valentines Day. Learn quick facts about the history of the holiday, all about traditional Valentine candy, other holidays celebrating romance around the world, advice on buying and selling a diamond ring, and the mating habits of animals. This is just what you need when you're sitting at home alone at your computer on Valentines Day. May you someday know a relationship as good as that of the shingleback skink.