Any philosophy majors out there, believers or not, understand the fallacy of this logic - proving a negative is on par with asking someone to prove the universe was in fact, not created by a Flying Spaghetti Monster , (and may he bless you with one of his noodley appendages). Many laughs and headaches may ensue, so be careful if you decide to think about this too much.
"I’ll have the lot."
"A wise choice, monsieur! And now, ’ow would you like it served? All, uh, mixed up togezher in a bucket?"