You're not exactly wrong but your comment isn't really reflective of anything meaningful. Correlation does not always equal causation. And I know a LOT of people with the same experiences. The commonality of these experiences leads me to believe it's a cab thing and not just a me thing.

In all other aspects of my life I tend to be pretty easy to get along with and generally have reasonable expectations. I don't have any reason to think my expectations of the cab industry are out of line with my expectations for everything else.