In the absence of any regulations, and the fact that manufacturers almost universally endorse the AMA guidelines by inclusion in their products, the argument could be made in small claims that failure to abide by those guidlelines and causing damage to someone that was would constitute negligence. Whether you personally accept the AMA guidelines or not, a large majority of flyers and product manufacturers do, making it a defacto standard.

A final point - I may not have been clear. When I stated that I would hope the rogue flyers would be agreeable to establishing guidelines, I was referring to a written frequency sharing agreement, not the AMA standards.

Brad