(I heard this from an MIT grad, who says it's a classic).
A student pushes a loaded shopping cart up to the express checkout
lane at a Cambridge grocery store. The cashier looks at the cart,
looks at the student, looks at the "EXPRESS -- EIGHT ITEMS OR LESS"
sign, and says to the student, "Are you from Harvard, where they
don't know how to count? Or MIT, where they don't know how to read?"
