"i refuse to prove that i exist" says god "for proof denies faith and with out faith i am nothing"
"but the babelfish is a dead giveaway isnt it?" says man "it could not have evolved by chance, you must have created it, so by your own admission, you dont exist. QED."
"oh." says god " i hadnt thought of that" and promptly vanishes in a puff of logic.
"that was easy" says man, who then goes on to prove that black is white and gets himself killed on the next zebra crossing.