So I was thinking about black holes some more, and I concluded that the nascent event horizon will indeed prevent its own formation...unless space is quantized. Infalling particles would jump directly from a region of finite time dilation to inside the event horizon. This gets interesting as Einstein's relativity is inconsistent with quantized space, so we'd need to update the theory of gravity, and quantized gravity may not have a black hole solution in the first place. Although if not, it is likely to have something similar, what with all those massive dark astral objects.
There's also some housekeeping regarding my previous post. I'm glad someone else has noticed that black holes should prevent themselves from forming. Truth is available to everyone, which means that independent discovery should happen with basically every true idea. Only lies can be truly creative and unique. (Indeed I just found an argument that the classical black hole would reverse its own time before an event horizon is formed...in short, nature abhors an infinity.)
However, the large hadron collider is not dangerous. While Hawking's calculation may not be consistent with an actual unified quantum gravity, it is consistent with things like thermodynamics #2; even if Hawking is wrong in the details there is every reason to think that black holes decay. For example, using my ideas (or Pegrume's) the black hole is really a collection of almost-infinitely redshifted objects. Hawking relied on the sharp event horizon, but imagine instead that a virtual particle pair forms, one half annihilates a real particle, and the other tunnels out. Essentially this is a captured particle tunnelling out of the black hole, and thus a loss of mass, and thus, Hawking radiation, even though half of Hawking's assumptions were counter-assumed away. The result is robust like this in several ways.
Considering a micro black hole, I remember that matter is in fact mostly empty space, and that the thing which makes a black hole is gravitational gradient. So this micro black hole is basically a few massively redshifted particles very close together, but the dangerous volume they create is smaller than a proton; beyond this their fields appear completely normal, for example a black hole doesn't amplify gravity, so the gravitational attraction will be that of a few individual particles, exactly as they were before the atom smashing. Between small volumes and empty space, unless the phenomenon is completely stable, it will decay before it manages to grow enough to stabilize.
Using the maximum possible energy the LHC can produce, assuming all of the energy is captured by the black hole, it would have a Schwarzschild radius of less than a Planck length.
Let me say that again: less than a Planck length. A lot less, like ten orders of magnitude less. Don't forget that most neutrinos can make it through the entire Earth without touching anything. The cross section of a neutrino is way, way higher than a Planck length.
Further, virtual particles swarm around real particles; this phenomenon is responsible for shielding some of the naked charge of the electron, for example. Clouds of virtual particles should corrode the black holes.
Similarly, the idea that the LHC will somehow do things not before seen in nature is preposterous human hubris. Every time before we thought we've been clever, we've been shown up, often by 'lowly' creatures like sea cucumbers, or random comets. While it's impossible to rule out total destruction, the correct odds for the LHC in particular are exactly those of any new technology, like internal combustion. Even assuming we do eventually manage global apocalypse, we're not going to know it might happen beforehand.
Every single factor is stacked against catastophe, even though consensus physics is wildly wrong about black holes.
 Pegrume wants the index linked. First, he should say so on the individual pages, I was checking for crankishness when I found the request. (He certainly lacks a proofreader, as attested by a serious problem typing with 'none' instead of 'non.') Second, his request is unreasonable, but luckily he provided the reasons, so I'm interpreting it.
 Real black holes theoretically emit less Hawking radiation than they receive in cosmic radiation. They're big enough to have a noticeable cross section to catch radiation, and Hawking radiation drops with size.
 Physicists even suspect they're wrong, as in every other case a singularity is not a sign that nature breaks down, but rather a sign that the mathematical models break down, and are thus incomplete.