When Tigris went to sleep Filou had entered the room. Our vet said that was ok as it was his possibility to understand. Filou came over to Tigris after he was gone walked around and sniffed the air around him- he didn't touch him.
Then he sat down neatly Egyptian way with his tail around his pawsies and sat for half a minute very quietly as if paying his tribute. Then he went away and never bothered again. Just like Paizley he copes very well.
Maybe because Buddy didn't have a chance to say goodbye he misses MooShoo and wants to find him in the scent of his blanket