SCP-00WTFDoC (lovingly called "where's the fucking D of Connecticut" by the foundation workers, also "what the fuck, doc?")

People think it's safe, because it's "just an invisible D", not even a dick, just the letter D, and it only manifests verbally when someone tries to say "connecticut" or write it down. When you least expect it, everyone heard "Donnedtidut", everyone read that thing and a portal to that fucking place opens and drags you in.