The randomness that is multivariable calculus

When learning about derivatives, eat cake.
When learning about double integrals, eat more cake.
When learning about triple integrals, eat ice cream.
Constructive vs. Destructive (SMASH Z FIRST!!!! Or not...)
When learning about flux, eat twinkies (leave the twinkie).
The vector field of gravity is EVIL.
The divergence of vector F (F being the vector field of gravity) centered where (x,y,z) is not equal to (0,0,0) is 0. At the origin it is undefined.
The gradient of a vector determines the potential...if there's no potential, it's not gonna work out:

Guy to his date says, "It was fun, but this rotational vector field has no potential."


And this is what happens in a calc class...full of econ majors and only 5 math majors.