It's a personality flaw--I hate to stop reading or listening to something without completing it. However, I decided that Measure of a Man by Sidney Poitier was too boring to listen to in the car under threat of going to sleep at the wheel. He just talks on and on about who he knows and worked with and how great everyone is and blah, blah, blah.
I also checked out the Zone Inflammation Diet and after reading parts of it, I'm done. Some of it makes sense, and some of it is over the top. So I'm returning them and picking up some new stuff!