Okay, in other news, we've asked Carl's family how we can best help - flowers, kittens, donations to charidee (Cat Rescue, maybe?), or whatever is needed.
Turns out (perhaps unsurprisingly) that Carl was a man of few means and the family is going be landed with the funeral costs.
Can't be having that, so I've started the process of creating a JustGiving page so we can help cover the costs of Carl's funeral. When that's approved, I'll post the link here.