Thank you for your good thoughts, I'm sure they helped.
Fister has been back for an hour, but is still not out of the anethesia, but it went well. :) He had two teeth pulled.
I was sure he wouldn't/couldn't jump out of the box when we got home, but he did! The poor boy was trying to get to the bedroom. He could hardly walk. So I carried him and put him on my bed and I've been laying there next to him since. Just now, while I was out here, he had crawled to the edge of the bed, so I put him on the floor, so he won't fall down. He's now under the bed.
The vet gave me some pills to give him, they're called Antirobe Vet. I'm to give him one in the morning and one in the evening, for 8 days.
When he got out of the box, I had my camera ready, so maybe later I'll post a video.
I'm so relieved it went well! :)