Men pee on the urinal cake and then it clicks into play mode - no doubt an Eartha Kit like voice - purring, "Hey there, big guy. Having a few drinks? It's time to call a cab or ask a sober friend for a ride home."
And when a woman's voice says something like that, at such a moment of vulnerability for your average straight guy, you KNOW they're following suit.
Actually, maybe not. Are drunk men really going to rationally respond to a talking urinal cake they're pissing on while drunk? The power dynamic is already immediately off balance - they're urinating all over the voice of authority for a start.
Secondly, if the New York Subway system voice overs have taught us anything it's that commands are better spoken by men and information is better spoken by women. People will do what they're told when men seem in charge. It seems like a base level conscious decision made after information was ascertained through market research.
And what happens with gay men who are not just indifferent to the woman's voice while they're drunk peeing, they're actually nauseated by it? Also, what about people who get off urinating all over other people?
No one thought of those people, did they?