I woke up tonight to an earthquake. I threw back the covers and sat straight up.  Years ago I use to live in Central America and I hadn't felt that thrilling and terrifying feeling since then.  I got out of bed and searched the interwebs and twitter, but alas found nothing.  No other fellow human was reporting of an earthquake in Tennessee (they are rare in these parts).
SO, there is only one logical explanation... and he lays happily and innocently sleeping in my bed.