Re: [wwarped] What leads to most Accidents, Incidents, Injuries, or Arrests?
Judgement error.
There are three tools we can use to avoid accidents (and busts).
The first, and most important, is judgement. Judgement tells us when not to make a jump, and the only jump we can know, with 100% certainty, will not result in an accident, is one we don't make. That doesn't mean you should never jump, but it does mean that you should always exercise careful judgement to reduce your chance of injury.
The next tool is knowledge. Knowledge arms our judgement, by telling us about the jump (and the odds of injury). By knowing about our equipment, the conditions, our capabilities, our gear, and how all those things interact, we allow ourselves to make good judgement calls, and also to properly prepare for the specific jump.
The least important tool is skill. Good skills can save your ass--after you're already in a bad situation. But with good judgement, you never have to use your skills, because you're never in a situation where you need them to avoid injury. Skill is our cure, in case our prevention fails.
The other thing that I see far too many people relying on (and which should never be trusted) is luck. You can't count on luck to keep you safe, because you never know when it will turn on you. When you get lucky, it should be a clear signal that you need to re-evaluate your judgement calls. Instead, many people treat it as a signal that they really are bullet proof, and that it's ok for them to make bad judgements because luck will save them.