I tell you I have a knife in my pocket. If you don't admit that I have a knife in my pocket, I will kill you. If you admit I have a knife in my pocket and giv

I tell you I have a knife in my pocket. If you don't admit that I have a knife in my pocket, I will kill you. If you admit I have a knife in my pocket and give me your wallet, I might spare you. There is strong evidence to suggest that there is a knife in my pocket, but some evidence which may suggest there is no knife. Are you skeptical by default that there is a knife in my pocket? Can you afford that skepticism?