One of the most important subjects, and one of the least discussed in this forum, is how to avoid getting yourself (or others) hurt while working with model aircraft.

Some parts of this are simple:

Keep your hand out of the prop. Don't run with scissors

Some are not quite so obvious:

Keep the 12 volt battery and the metal fuel can away from each other. They like to go [X(]"BOOM!"[X(] when they get together.

Some you really need to think about:

Why the rule about keeping RC combat planes out 500ft/ci displacemnt?
Its to help keep the parts that result from a mid-air from hitting people. Its also to help keep the guy who gets caught up in the action from hitting the crowd when he tries to fly someone else's plane (instead of his own) I'm sure when you THINK about it.. you can see more reasons to keep them out a bit.

Why the hard hat for the Combat participants?
Its more to remind the pilot that he's doing something that CAN be dangerous than to protect his head. If you have to wear a hard hat... its hard not to think about WHY you are wearing it.

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Make your safety ideas short ... or they get BORING[&o]