At full moon, in accordance with his claim to be on an equal footing with the gods, Caligula would invite the moon goddess to his bed. "Did you not see her?" he demanded of Aulus Vitellius (himself a future emperor) one evening.
"Alas no," Vitellius tactfully replied. "Only you gods can see one another."
[Caligula indeed made his horse, Incitatus, a senator and Claudius a consul -- and the horse, many believe, commanded more respect. Among his perks? An ivory manger and a golden wine goblet.]