The cage
When a friend found a cow in her front yard the other day it reminded me of a question by Gerald Weinberg. I think his question was like this: "How do you keep a buffalo from running away?" The answer is simple: give it just enough room so it doesn't realize it's in a cage.
I've found that when it comes to work a lot of people are just like the buffalo in this story: You're in a cage, but your cage has gotten large enough so that you're comfortable, and most of the time you forget about it.