If I walk into the room and you see me, you'll (subconsciously) assign a zero-chance that I'm the queen on England. Why would that become non-zero when I presen

If I walk into the room and you see me, you'll (subconsciously) assign a zero-chance that I'm the queen on England. Why would that become non-zero when I present obviously faked proof (a paper crown, etc). Why would CW's obviously faked evidence provide any support for his claims?