Initially I did believe that Cavendish was essentially "boxed" in, and lost the sprint. This thread however, has me questioning this.
I can read lips (my next door neighbor is deaf) and I could plainly see Cavendish mouth "!SEVIL NATAS" as he banged the handlebars in "frustration".
Thinking there might be something to this coded outburst, I watched the stage backwards from the finish line. It then became painfully obvious that Cavendish boxed HIMSELF in. He had plenty of room at the finish, but as I watched the coverage in reverse, Cavendish just got closer and closer to the other riders for no apparent reason.