This is the theory that I had a while back for Animaniacs.
So, my theory is that they all have at least one dead sense. This is something that came to me in the shower, so don't judge me please. (Also, this is pre written. Im not just rolling this off)
Throughout the show we get a few hints of the siblings, Yakko, Wakko, and Dot, having something wrong with their senses In the song 'sences' we get a good look at all the sences they have. I used this as refrence for my theory.
Let's start with Yakko. In the song he gets the lines "The sense of sight is what guides us right when we go out on walks" and "The sense of hearing is something good, 'cause if a tree falls in the woods, would there be a sound? You bet there would! If it landed on top of your hear!". I think he is probably going deaf or/and blind. This might also explain why he finds Hello Nurse to be so attractive. He probably fell for her figure rather than her actual looks, with Wakko copying him as a roll model. In the reboot, he is shown to have anxiety. I think this might stem from him knowing that he is going deaf. He feels he needs to be able to hear someone talking to him at all time. He is also shown to be, not afraid as such, but not very confident in badly lit or dark places. I think this might show the blind side of him.
Next is Wakko. He has a more complex one, in my opinion. He has the lines "The sense of smell is the way you tell that you need o change you socks" and "The sense of taste effects your waste". I think he has no sense of taste and/or a dulled sense of smell. They are both problems caused by over consumption of sugary, salty, or spicy food (also caused by alcohol but that's clearly not what happened here). If you have too much of the foods I just listed and too often, you will loose you main taste buds, which effect your sense of smell too (we all know Wakko already has Hyperglycemia, so I wont add anything to do with diabetes in here.) If I am right, and he does have no taste or smell, then he probably is eating food because of its texture or because he knows what it tastes like. This would explain why he has a certain pull towards food like oats, grains, and soft fods (like ice cream, cake, and soup) but he won't turn down anything else if it's handed to him. When he was a baby, Yakko most likely fed him soft food, so he feels he can trust it more. Another reason, (no logic, this is just what I think.) if Wakko was to get sick, he probably wouldn't know what caused it, thus being more afraid of things like vomit and whatever. It is a solid trait of Wakko to eat food that gas just been sitting out for 22 years. . .I'm literally gagging right now just thinking about that. . . But this could be caused by the fact that he wouldn't be able to taste mould.
Last is Dot. I actually couldn't find much on Dot having no sense of touch/pain so. . . If anyone can back this up please do. . . If I find some I'll add it on.
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