you have no life - and you can PROVE it mathematically.

you know vector calculus but you can't remember how to do long division.

you chuckle whenever anyone says "centrifugal force."

you've actually used every single function on your graphing calculator.

it is sunny and 70 degrees outside, and you are working on a computer.

you always do homework on Friday nights.

you hesitate to look at something because you don't want to break down its wave function.

you have a pet named after a scientist.

you laugh at jokes about mathematicians.

the Humane society has you arrested because you actually performed the Schrodinger's Cat experiment.

you can translate English into Binary.

you can't remember what's behind the door in the science building which says "Exit."

you have to bring a jacket with you, in the middle of summer, because there's a wind-chill factor in the lab.

you consider ANY non-science course "easy."

the "fun" center of your brain has deteriorated from lack of use.

you'll assume that a "horse" is a "sphere" in order to make the math easier.

you own and proudly wear a t-shirt with physics quotes on it.

your cat's name is Schroedinger.

you go to Europe and spend the entire time in a lab.

you're an American and you think in metric units.

you have found yourself talking to your laboratory experiments as if they were some of your best friends.

you drool at the sight of a laser.

you have heard, understood and laughed at a joke about Heisenberg.

liquid nitrogen just isn't cold enough.

you've ever quoted one of Newton's Laws to make a point.

you catch yourself pondering angular momentum while you're high.

you understood more than five of these indicators.

you make a hard copy of this list, and post it on your door.