We have had Cadence for about a year and a half. She's supposed to belong to Miss KT, but my mother wouldn't let her take "that rodent" when she moved in. Today's behavior has been kind of strange. She worked all morning to bring wood chips up to the second floor of her cage, and built herself a nest up there, and she's curled up in it. She's never done anything like that before. I'm wondering if this means I'll be having a rat funeral soon.