Rosie does dribble, never thought of it being connected. As far as I know, only Felix Senior comes in tins (unless you count Whiskas Supermeat, but they are only 190g tins), only seen it in Morrisons and TEsco so far, for renal food, I would ask your vet for a couple of pouches of each flavour first, and if he likes any, then I Would go on VetUK, as it might be a bit cheaper. You might also want to be cheeky and ask if your vet can get samples of kidney dry - my vets have free samples of most prescription dry foods.