I can relate to Calvin on this one. If I'm driving somewhere and realize I've forgotten my teeth my normally calm (comatose) demeanor can undergo an abrupt change. That said, I'm of an age now that such situations don't matter as much as they once did. Unless I'm no more than a few minutes from home or have ample time to kill I just continue onward and hope to remember to keep my mouth closed for the duration, and mumble if I must.
(This is a very rare occurrence for me, but it's happened a few times. Thankfully not in years.)
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