Variety is the spice of life - especially when it comes to cats. I love the creativity of the box! It can be fun to think of/try new things. Sometimes it'll be something cheap with cardboard or I've used egg crates or toilet paper tubes!
Yaaaay! I'm so glad you got her back in!!! Maybe the rain was just too much or the frogs put her over the edge. 😆 She might have an appetite to go outside more, so watch her close!
To me, it sounds like he might want you to play with him. Some cats (depending on personality and schedule) get what I call "The Nighttime Wilds" and will get a little hyper and need to burn energy.
When my girl had gall stones and wasn't eating, I had a buffet of foods. It was trial and error on textures, flavors, etc. She just about never ate her old food again. Mirataz (mirtazapine) also helped a lot. Started with smaller doses every couple days but she also had a plethora of things...
The absence of a constant companion like that can be like losing an appendage. It's a lot to miss. I hope that in time (it always takes time) that you find other things to help fill the void. Until then, there are a lot of people out there (and here) who are familiar with this loss. Keep...
I'm not a vet in any way... but since he's acting 100% fine otherwise, I think you could probably just closely monitor him. Drooling, obviously, isn't normal, but hopefully it resolves soon! Keep any eye out for any other symptoms - gait, activity, input/output, changes in behavior, etc.
What motivates her? Play? Food? Cuddles? I'd recommend doing what she loves most to tempt her. If it's cuddles, sit near the brambles for a while (read a book or whathaveyou) and see if she'll come out.
Some cats are special to us in particular ways. Like you said, he was your gateway cat. Sounds like he helped you fall in love with cats and now you have cats of your own. That's very special. He opened your heart, mind, and home to give other cats a good life! I believe that with all things...
They're nearing that extra cute phase where they start to really play and stuff. I love when they run around with their tails straight up in the air. Or when they do their first tush-waggle to try to pounce. Or the sideways approach. So fun.
I think I lean the other way - that he shouldn't have the extra stress nor be far away from his vet if he's that old and frail. It's a tough one since you've cared for him before. I assume you couldn't stay there due to work, correct? Can you talk this through with the owner? I think the owner...