Speculation

According to Rule 3, "No Player may voluntarily create an effect which requires them to lose more Hats than they have." I was about to deduct Kahbn 6 Hats for two failed proposals before I realized that he doesn't have any. In a way, he created an effect which required him to lose more Hats than he had; one interpretation would be that those proposals were illegal to begin with.

I pose these questions to the blog: is there already a precedent for this? If not, should that sentence apply to Proposals? Either way I think it should be clarified, but I don't really know which it should be.