[Barry the Sprout]

Good point from Donut I feel. But to be honest I think thats not so much a problem with the pill as it is with the man lying (and the woman believing him I suppose). This idea might have more use if you're in a long term relationship, same as with the female version. For one thing, why are you going to go through the hassle of taking the things regularly when you're not actually getting any in the first place. I know very few men who would take this pill on the off chance, and very few women who would believe otherwise. But maybe thats just me.