Well, as I said in the last article I think a lot of people get frustrated due to the perception that a gamer can just stop playing a game at a moment's notice and go running off to do whatever they need to do.
For whatever reason I think better information on this subject should be circulated, although admittedly it can still be annoying even when dealing with groups of adult gamers who all know about this.
Also to be honest, while I think a lot of adults who haven't really gamed since the extreme old school or whatever (if ever) are misinformed in thinking a game can just be "snapped off" without losing anything of note, I think it's kind of messed up with current technology that they can't be. I see no real reason why games can't be saved anywhere while your playing other than the usage of checkpoints/savepoints as a device to make games more "difficult" but by the same token I think that can be worked around if a standard was created that all games should be able to be saved at any time pretty much for the conveinence of the players and any RL needs that might come up.
I'm saying this because it seems like a common thread in these articles is that some parent basically "snaps" because their kid won't stop playing when they think they should be able to. Taking as much as a half an hour to an hour to save off a game to avoid losing a lot of progress... and let's be honest, anyone who games seriously can probably tell you about having been in exactly that position, and some games are unusually brutal about it. Grand Theft Auto in paticular tends to "Reward" you with game saving conveience/safehouses.
I think it's a problem with perspective, as well as with the general design philosophy involved in games.
Not all people are entirely stable, and frankly if your constantly seeing a 30 minute or so delay to anything you want done when yor kid is gaming, it's going to wear at people, and some people are going to snap, especially if they think they are being messed with a lot more than they are.
In both of the recent cases (stabbing above, and the parent calling 9/11) the basic issue was the perception that they couldn't get their kid to stop gaming at a moment's notice. I could be wrong about the details here, but it's a gut feeling based on what I've seen and experienced personally.
Of couse what I think doesn't usually matter, because it's not like anyone that matters listens to me.