Scarlett was marginally more interested in the shredder than Melly was, and kept sniffing at the shredded paper. She ended up blowing the little pieces all over the floor, and their motion confused her greatly.
A couple of updates:
I will try to get the kitties and their tricks on video. I have tried to video Melly sitting on command before, but she develops a sudden obstinacy and lack of interest in treats the moment a video camera is pointed in her direction. It is most unhelpful.
Melly's eye ooze started getting worse again, so we took her to the vet yesterday, where she was diagnosed with an eye infection. It's no big deal, but I do have to put antibiotic ointment into her eyes three times daily. Fun times are being had by all.
Melly had her yearly checkup three months ago, and weighed 11.55 pounds. We managed to get Scarlett weighed at that appointment as well, and she was at a ghastly 12.20 pounds (for comparison, she weighed 9 pounds when I got her). We brought Scarlett to Melly's appointment yesterday, and managed to get her out of her carrier and onto the scale with very little fuss (the vet tech was astonished); she weighed 11.05 pounds! Huzzah! Well, as it turns out, Melly found the pound that Scarlett lost and now weighs 12.35 pounds. Sigh. I don't think I can safely cut their food ration much further, so more exercise for Melly is called for.