"Bob Vance, Vance Refrigeration".  Kind of a funny recurring joke, but this shirt rules for it's subtlety.  You really have to be a fan to understand this one.    Not that I want to rain on Bob Vance of Vance Refrigeration's parade, but in the last couple years I have become more familiar with a phenomenon known as thermal pollution.  Every time we artificially raise or lower a temperature artificially we are increasing the universal entropy.  Not that I don't have a refrigerator, but I am trying to cut back on a/c and so on.  I dated a girl from England a few years ago and the only thing she left me with was a taste for room temperature water (which is actually easier for your body to absorb).  

If you are interested in Chaos Theory, here is Chaos Theory for Beginners http://www.abarim-publications.com/ChaosTheoryIntroduction.html