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.
Family-Unfriendly Aesop: If you watch the "Time Out" episode, you might get the impression that if one or two people in a group causes damage, the entire group can get in trouble for it. Moreover, it seems to teach that one can get punished even for something that they didn't even do on purpose, and that nobody can point out that it was an accident to begin with or that one wasn't even involved when it happened. However, that is Truth in Television, as many could probably attest to.
In another episode, Granny is cleaning out the attic and wants to donate one of Daffy's favorite toys "Mr McStuffles." Daffy claims he still loves him due to all the great memories and doesn't want to give him up, so Granny outright forces him to do nothing else but sit and play with his doll to prove he wants to keep him. The moral of the story seems to be that you should instantly get rid of something you haven't touched in a while regardless of any sentimental value it has to you.
Fridge Logic: Daffy occasionally has teeth depending on his expression, but a great deal of the plot of "To Tell the Tooth" revolves around Daffy not having teeth.
In "Shadow of a Doubt" they expect us to believe the babies never saw their shadows before.