So here and there on Chief, I see a lot of the usual tips for Shop and Pit safety, such as "Wear your safety glasses", and general shop safety. However, I think now is a great time to remind people of important things they need to start practicing before competition comes. FIRST has many safety regulations that a lot of people seem to be unaware of, and while I would love for everyone to read the manual, those that don't should probably remember really really important ones. So think of new ones, reference the manual
Let's make 2005 safe!
Be careful with spirit materials: large objects hurt if they hit your head. Trust me.
If you have to see something but can't, climb higher in the bleachers. Not on top of people. This occurred last year at some regional I was at, and it was taken care of. However, it is still very dangerous.
Warn the people around you if there is something dangerous going on. There shouldn't be in any occasion, but if it's occurring you need to inform the volunteers at the event and other teams.
I like fire. A lot of people like fire. But don't randomly play with fire in the stands...I think this warning explains itself fairly well.
I can't think of any more warnings of the top of my head.
Edit: As mentioned below, "Wear Safety Glasses" encompasses everything
Thanks to Arefin and Billfred so far for elaborating on this rule.