Owen Niblock's Law of Building Anger

I would like to put forward a theory. The more time you deal with a particular builder, the greater the probability is of telling that builder to fuck off. I have recently experienced this and to illustrate, I decided to draw a graph:

The Law Of Building Anger

There are a number of noteable features of the graph:

(0) The starting probability is > 0. This represents the latent desire we all share when dealing with a builder for the first time. Do I trust this person? Should I just tell them to sod off? Will they be reliable?

(1) This is the the point in the graph where the rate of change of the probability of telling the builder to fuck off is at it's greatest. You feel manic, constantly up and down, you're still trying to maintain a polite and professional front but various things the builder does is starting to annoy. You begin to seriously doubt the decision to hire this workman in the first place.

(2) The probability approaches 1. You reach a zen-like calm and at that point you tell the builder to fuck off. He seems suprised. You no longer care if they finish the work. Maybe you can do it yourself (you can't) or maybe you can get someone else in to finish off (you won't). This is the point at which the job either gets finished or it remains unfinished for months until you get a different builder in to do some other work so you can entice him to finish the original job at the same time.

The process repeats ad infinitum.