Calculus Ape Key Ring

Apes read calculus, they just don't understand it. And good thing too, what with the crazy ape strength and the poop throwing. A race of calculus-knowing superchimps would easily enslave us puny humans. But for now, you can mock those mathematically maladroit monkeys with a malapert LabKitty Calculus Ape shirt! Obtuse design will bewilder apes you may encounter, providing a critical window of opportunity for escape lest you be peeled like a banana. As Epinephrine wisely said: those who do not remember calculus are condemned to repeat it.