Paternity Test Tuesdays

So I'm listening to the radio, this time in AZ. And a commercial comes on. For Paternity Test Tuesdays. Where should I start? 1. Why does that sound like some kind of happy hour? 2. Really?! 3. If you plan on having sex, it might be a good idea to stick to one partner at a time, or in a given cycle, and maybe, I don't know, use protection and Paternity Test Tuesdays could become null and void. 4. I should really stop listening to the radio.