I thought it'd be cool if we could maybe RP Basil learning to cast a Patronus charm? I imagine it'd be a bit of a challenge, and I'd love to see how Lucas tries to prompt him to summon one properly without the boggart that Lupin was able to use or... an actual dementor.

Also Basil scaring the shit out of himself when he learns he's got a dog Patronus is going to be great, at least in my head.