Things On 24 That I Just Noticed

Watching 24 today, a pair of quick observations. One non-spoiler, the other minor spoiler.


First, non-spoiler: I never really thought of this but it seems way too easy to knock a guy out in an action movie by smashing him on the back of the head. Not that I've ever tried to smash people on the back of the head to knock them out, but I would think the force necessary to do so is more than is typically represented.


Second, minor spoiler:


In the last few episodes, Jack Bauer has been relegated to the sidelines of the action. I wonder if Kiefer Sutherland sustained some sort of injury that prevented him from performing some more of the physical actions required from the show and his usual role.