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.
Moral Event Horizon: The two gators Floyd and Jolene, the series' main antagonists, cross the line in "The Birds and the Bears" when they steal Gus's paddlecab and trick him into following them so they can lure him into quicksand and leave him there for dead while they go off on the paddlecab and capture some of the swamp's young critters for dinner. Of course, naturally, they do get their comeuppance after Kissyfur, Miss Emmy Lou, Beehonie, and Toot free Gus, who manages to put them in their place as he always does and helps rescue the young critters and gets his paddlecab back.
Tearjerker: One episode wherein Kissyfur is led to believe his father doesn't love him anymore and that he causes his father pain (when in reality, the pain was referring to Gus' rotten tooth)