In order to generate sympathy...

I will share the math problem that I am currently working on.

Let A, B, C, and D be distinct cocircular points and fix a line m not through A.  Let X, Y, and Z be the points where AB, AC, and AD, respectively, meet line m and let W be the intersection point of m with the tangent at A to the circle through A, B, C, and D.  Show that cr(A, B, C, D) = cr(W, X, Y, Z).

Don't you wish you were taking Math 3100 this semester?

I get really tired of reading these problems and trying to figure out what in the world they are talking about....  2 hours later, I usually get it.  This week, I have about 19 problems to finish.  No wonder I'm going completely crazy!