The effectiveness of gravity is directly proportional to your awareness of it. If you run off the edge of a cliff, you will not fall until you realize you are standing in mid-air. Helpful advice: when pursuing your nemesis, never look down until you get where you are going.
In any group of multi-ethnic friends, the white male is the one who will be wrong about everything.
Cartoons villians, when planning the deaths of their enemies, will never resort to anything as simple and effective as a bullet in the head. Said villians will always devise some absurdly convoluted, multi-layered, tech-heavy, and invariably bug-ridden deathtrap that can usually be escaped with the aid of any random piece of junk the hero finds lying around.
Wealthy people, unless they are a blood relative of the show's hero, invariably obtained their wealth through underhanded means, have let their wealth go to their heads and -- horror of horrors! -- they're not eco-friendly!
In contrast, poor people are always morally superior to rich ones, and never use the despair of poverty as an excuse to commit crimes.
90% of all teenage girls in the cartoon multiverse have a little brother. And all of them are brats.