As random as I oughta be

From John D. Cook‘s Probability Facts twitter feed, discovered the infamous RANDU, and this absolutely marvelous quote:

One of us recalls producing a “random” plot with only 11 planes, and being told by his computer center’s programming consultant that he had misused the random number generator: “We guarantee that each number is random individually, but we don’t guarantee that more than one of them is random.” Figure that out.

which in turn reminds me of this: