Hi guys, sorry it's still mad crazy here. I'm using one side of the xpen to divide as much as as possible. That seems to be helping Della realise there's a barrier and doing that in conjunction with teaching her the word 'Shoo' means keep away. Kismet learnt this much more quickly - but with Kismet I need to teach her to not use Tully's ramp as a race track while Tully is on it! Poor Tully is keeping away from them more too.
Tully has had a few falls lately: she fell off the verandah going to the toilet - I realised she has no night vision at all now.
And she is limping badly, although she still wants to go for walks and once moving can go for 20min (and will push for longer if I don't make her get in the stroller).