Heisenberg's ticket

Dedicated to those cramming for the MCATs:
Dr. Heisenberg was pulled over one night for speeding.
POLICEMAN: Did you know how fast you were going?
HEISENBERG: No, but I knew where I was.

OMG that is so funny. Not just because it is funny but because the fact that it made me laugh so hard is also funny. I feel like a dork!
Mary

Mary,
not only you had a good laugh at it! I almost fell of the chair (literally and figuratively: - our computer chair is a little bit crooked, and we never get a chance to get a new one).
I’ve e-mailed the joke to my Gen Chem professor. I guess he’ll appreciate this joke!!!