So, watching a TV show with the sister-in-law last night, Burn Notice (normally it's on after my bed-time). It's slick, that's the best I could say for it. The main character narrates much of the show ala Noir detective movies, although the rest of the show really smacks of a Miami Vice/Magnum PI mash-up. One of the things that was narrated (the parts of which normally start with, "In the spy business" - I don't know any "spy" that talks that way) was about the use of nitrogen gas for assassination and how it was "untraceable."
Um, yeah, like a standard blood chemistry test the pathologist/coroner would run wouldn't show high levels of nitrogen and low levels of oxygen. The first thing they would ask, "Was this person a deep-sea diver?" Plus, you know, the first responders to the scene wouldn't notice that it was really hard to breathe in the room?
So while I was watching it with a wry grin (the premise is a bit to take to begin with), that right there broke the "suspension of disbelief."