While commenting on the honesty of females, Matt Huston, a so-called 'ex-girlfriend guru', says that in some survey conducted on August 5th 1997, it was found that an average man 'grooms' with 7 different women in his lifetime while an average girl grooms with 12 men. Considering the gender ratio as 1:1, is this even possible? Here's why I doubt it: Assuming all men groom with 7 women. Thus number of grooms is 7 times the number of men. By the same argument, number of grooms can be 12 times number of women. Since the number of grooms is fixed, the number of men is 12/7 of the number of women. Which is not true. I've used the word 'groom' to keep it PG-13.