[exDemMom]

What's the big deal about "proving a negative? I can easily prove there is no thousand-dollar bill in my wallet.

I say there is a thousand-dollar bill in your wallet, but you cannot see it because it is caught in some transdimensional warp. No matter how hard you try to disprove a negative, there is always a "but" involved. BTW, when you find that $1000, could you lend it to me?