A true service to humanity would be to sell a book called "Sex for Dummies" whose pages contain a complete, detailed manual giving precise, idiot-proof instructions for refinishing hardwood floors, or deep-sea fishing, or some such thing. We all know dummies shouldn't be having sex. If we can get them to read this book and end up doing something productive, all the while believing that whatever activity they're participating in is in fact sex, we'll keep them from multiplying and they won't feel left out around the water cooler on Mondays bragging about the great sex they had this weekend.

Better yet, the manual should contain instructions on microwave oven repair, or some other activity that through irradiation or other means serves to sterilize any who follow the instructions. That way, it becomes a method of reimplementing natural selection as well.

Okay, so maybe really it's unnatural deselection, but who are you to judge?