From Ad Age - Over 25% of Americans Use Facebook in the Can:
What’s more, AIS found that potty-poking was higher among women. Some 54% of female respondents admitted to doing it compared to 46% of male respondents. Of course, it doesn’t take a biologist or anthropologist or psychologist to point out that it’s much harder — and weirder — to “Like” something while standing at a urinal. (Though that’s not to say it isn’t done.)
But honestly – are you really surprised?