Okay, I’m amused and annoyed at the same time. Current local ad for a bike on today’s Craigslist:

My current mode of transportation is my bike. I have finally decided to part ways with my bike. One, I am hoping with the money that I get, I can purchase a calculator that will compute partial derivatives and other such computations as required for the completion of my vector analysis course. Two, I know none of these calculators exist. Three, I do not expect you to know this, and that you will be tricked to giving me money.

I present to you a challenge. The actual price for my bikemobile will be simple if you can calculate exactly to the ninth decimal value the volume of the solid given by the equation z=5x^3+3y^(1/34). This is bounded in the first quadrant and the lines x=ln y, y=ln z, and z=ln x. I will give any one who accepts this challenge a discount. For you simpletons who do not understand my asking price, please look elsewhere. If you do not have money or are stupid, you may not purchase my bike.

If you will accept my offer, I will also include my helmet. My helmet has protected me as it will protect you. It is loyal, and it is white. It does not look white anymore.

My name is Mr. Tim.