I think it is not a good idea to diagnose based on limited information, especially if you're not a professional in the field (I'm certainly not), and it can easily go well over the board "be nice" rule. There are occasional ATM posters I've wondered about, but I'm not sharing my speculation.

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I say there is an invisible elf in my backyard. How do you prove that I am wrong?

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The Leif Ericson Cruiser