Just like when the furnace threw Oscar off his pace and he recovered in a day or so, he is back to normal (for him). Even though he ate at an odd time last night (so the valets could go out to dinner), he chowed down. He also wanted to snuggle at 3 AM when I accidently woke him up, and this morning was a happy breakfast consumer.
The Catzillas? They woke up yesterday happy, and for all we know their example helped show Oscar that yes, life remains good as an Feline Overlord of the Kitten Farm.