Unjust Salary Theorem and Women are evil proved by maths

From
http://www.jupiterscientific.org/sciinfo/jokes/miscellaneousjokes.html

"
The Unjust Salary Theorem asserts that scientists can never earn as much as sales people. This theorem is proved as follows. Start by using the physics formula 
Power = Work / Time
Now you probably have heard that Knowledge is Power and Time is Money. Substitute these tautologies into the formula for power to obtain 
Knowledge = Work/Money
Solving for Money, one finds 
Money = Work / Knowledge.
Therefore, the less you know, the more you make.
"

Sadly this is a maths joke that people may not get. There's a similar one that proves that women are evil.

[Warning - this could trigger thoughts that I'm a sexist. Sheesh. Like that's never happened before.]

Start with
Women are time and money
    Women = Time x Money

However Time is Money
    Women = Money x Money
                 = (Money) squared

We also know that Money is the root of Evil
    Money = root (Evil)

Substituting into the equation
    Women = (Money) Squared
                 =  (root (evil)) squared                (this line looks better when written down than typed)
                 =  evil

QED, to geeks. : )