Can you teach old cats new tricks?

Tricky question indeed... (can you even teach young cats old tricks? Can you teach ANY cats ANY tricks?)
This weekend might be hell, as I'll be trying to finish a bunch of my own work and do some fun stuff before crunching on a freelance job I just got. I'll leave you with these cute photos my sister took of our old cat Cleo. Hey, she's Suki's aunty, have some respect.