Consequences are everywhere--sometimes when we don't even realize it! The Science of Consequences includes a number of examples of research demonstrating how we can be influenced by consequences for what we do without our awareness. (Another reason why it's helpful to know more about how they work.)
This fact was recently brought home to me in an unexpected way. I was at my optometrist's office, getting my vision checked with one of those eye charts--you know, the standard one with the big E on top, and rows of letters that get progressively smaller and harder to read as you move down.
The optometrist asked me why I was tilting my head. Was I? I was! I hadn't even realized it, it was so well-learned and automatic an adjustment. Tilting my head back a little brought the letters into slightly better focus, as I verified when I experimented, trying to read different rows on the eye chart with my head at different angles. It wasn't a large effect, but under the pressure of struggling to make out the tiniest letters, tilting definitely helped. It's almost spooky.