Being among the 80% of guys mentioned in a joke thread below (or above, depending on when you read this), I just HAD to see if mixing bleach w/ brake fluid creates smoke.
I'm sorry to report that it does not.
Note that I used generic bleach as opposed to the Clorox brand mentioned, but I did try DOT 3, 4 and 5 type brake fluids.
Just an observation that the DOT 5 like seperates & looks kinda cool like vinegar & oil salad dressing.
DISCLAIMER : Please note that I wore protective eyewear & a respirator while performing these experiments.