For what this is, this is functional enough. It works because of the way it's written – brief sets of excitement interspersed with horrific boredom, and I'm fine with that. The use of the mantra of "Oscar Frederick Dustin" throughout also helps to give this a sense of spacing and actively illustrates the divide between the frenetic action that occurs during a containment breach and the drawn-out period of boredom throughout.
The only problem is that I'm reminded perhaps a bit too strongly of Jekeled's excellent The Peter Paul Parable, which featured similar themes and even a similar construction (boredom/excite/boredom). Jekeled's entry worked better with regards to the stylistic elements, not to mention the action sequence felt more action-y. This is probably because the action in that tale was actually from the point of view of the person performing the action, though I accept the constraints of the character you're focussing on.
Scantron's Laughter also comes to mind, because of the emotional distances involved. I feel the main thing that differentiates this from either one is the context. What happened during the breach, why is he in containment – all of these details are small holes in the story that I feel need plugging in order to improve it. The reason for his isolation is something I feel could be solved fairly easily: a memetic hazard of some kind comes to mind immediately.
Note that I'm not saying you have to explicitly elaborate on what happened – what I feel helps this tale is the strong use of implication throughout – but an implied answer would lend some more substance behind the plot of the tale.