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.
YMMV: Max And Ruby
Memetic Mutation: Max's wide variety of facial expressions come which come across as rather devious for a cartoon character
Unfortunate Implications: The unintended moral of the story seems to be "Your younger brother is always right, no matter what." Gets kind of annoying when Max is doing something destructive and manages to 'help' the situation through sheer luck.