The concept of nakedness and shame has been around for so long. However, extend the concept of clothing to animals and we are trapped in a miry mess. I'm not talking about people who dress up their dogs or what have you. That's plainly stupid. Rather, I mean cartoon animals who wear a bit of clothing.
Take Donald Duck, for instance. There he is, being mean to everyone and losing his temper but what is he wearing? Fine, he's a sailor, but where are his pants? The mere fact he wears some bit of clothing means that he is aware of clothes and their purpose. So not wearing any bottoms is a message that this duck is delivering to us. Either he's comfortable with his semi-nudity or he's purposefully trying to offend people, making a point that clothing is silly...and apparently optional.
Next, we have Donkey Kong. Do you believe this guy? He only has a tie on! At least Donald had some shred of decency. This big ape is throwing our concept of modesty right back in our faces. The fact that the only thing he's wearing is a tie is symbolic of his rejection of the working man's uniform, as if to tell the masses to cast off the shackles of workaday life.
Finally, the most offensive anthropomorphic beast is McGruff, the crime dog. Yes, it appears he is wearing pants underneath his raincoat but hold on a minute. We've established that most cartoon animals are lacking clothing. So I think it follows that McGruff is missing clothing under that coat. Combine that with the fact that he's wearing the trappings of a typical flasher and you got yourself one dirrrrty ol' dawg. Take a bite out of crime, indeed. Start by arresting this animal.
All this is very disturbing but will probably not change anytime soon. The concept of modesty in dress has been around forever. Just look at Adam and Eve! Or rather, only look at them once they are clothed. It would not be proper otherwise.