I was just thinking I wonder if anyone would sponsor me if I spent an entire day telling the truth, the whole truth, and nothing but the truth for charity. I mean think about it, it'd be interesting, sort of the mental equivalent of shaving your head - it makes you look very unattractive afterwards but people give you a sort of grudging respect. All questions, no matter how personal and unpleasant would have to be answered frankly and unambiguously. It'd be a test of willpower, resisting the urge to omit some grisly detail, character assassination for a good cause.
-Ben