OK we’ve all heard janitors’ anecdotal evidence about how women’s bathrooms are oh-so-much dirtier than men’s bathrooms. Here’s my own anecdotal evidence: every time I walk into a men’s bathroom, the whole thing smells like piss and is the nastiest thing I’ve ever seen. When I go into the women’s bathroom in the same establishment, it’s much cleaner and smells nice.
So, janitors: it would seem that we have conflicting stories. That’s the problem with anecdotal evidence.