Oh good, no dinosaurs

I have discovered that while one is trying to sleep away the pain of a migraine, and one is awakened by the sound of garbage trucks driving around the neighborhood, picking up dumpsters, emptying them, and slamming them back down on the ground, it sounds an awful lot like there's a dinosaur thudding around outside.  Except dinosaurs don't make a high pitched "beep beep beep" sound to indicate they're backing up.  No dinosaurs then.  Well, that's good.