Don't cut or burn your self. Don't inhale solvents and adhesives.
Good idea for a post, but if people need to be told these things I say let Darwin have a whack at em.

No offense, but everything apart from the CS-6 recall is very basic safety and usually written in big red text all over the tool/product. Nerfer's parents shouldn't let them near things like saws, x-actos and hot glue guns if they haven't been told this stuff already. The CS-6 recall could be useful for a parent but not so much for an active nerfer/modder. A thread just for stock gun hazards and recalls could be a good idea, though, just for people with kids.