These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Crowning Moment of Heartwarming: When Marc Anthony's owner lets him keep Pussyfoot, he playfully scolds the kitten for scaring him... at which point Pussyfoot plays with his finger and he hugs him.
Ensemble Darkhorse: Pussyfoot. There's even lots of merchandise of him sold at the Six Flags theme parks.
Tastes Like Diabetes: Possibly Jones' cutesiest short since his Sniffles period. Yet also heartbreaking.
Tear Jerker: When it looks like Pussyfoot was baked into a cookie, to Marc Anthony's horror. It really gets driven home when the lady of the house gives him a cat-shaped cookie, which he thinks is his dead kitty, and slowly puts it on his back where Pussyfoot had napped before, as he promptly breaks down. Note that this was actually intended to be funny; Chuck didn't think anybody would take the scene at face value.
Well, one could still see it as funny since the audience knows Pussyfoot is just fine and Marc Anthony is crying for nothing.