"Well, it's true," said Set. "Cuz of everything I'd done, I wasn't welcome anyplace where the other deities were. Osiris claimed that he'd banished me to the desert, but that wasn't strictly true. I chose to be there cuz I was happiest there. But I only ever left it in human form."
Set decided not to mention that he'd left the desert mainly to have one night stands. He didn't really like to talk about how promiscious he'd been before.