thank you for your quick and honest reply. I am retired and will end up staining credit for this but he is my best friend.

that is my general plan. this will be our 2nd trip, a month ago he did this and in the hours before we went to the night vet he started peeing again and seemed OK, his bladder isn’t hard, he went a few time in the past few days but not much.
I think I am to blame for this by giving him people food while feeding him cheap dry food.
Hopefully we can get in tomorrow night, he’s a handful though and gets very scared/aggressive on the table.