Here is what it says in the NEXSTAR ARF assembly manual:

<div></div><div style="margin-left: 120px;">We urge you to join the AMA (Academy of Model
Aeronautics) and a local R/C club. The AMA is the
governing body of model aviation and membership is
required to fly at AMA clubs. Though joining the AMA
provides many benefits, one of the primary reasons to join
is liability protection. Coverage is not limited to flying at
contests or on the club field. It even applies to flying at public
demonstrations and air shows. Failure to comply with the
Safety Code (excerpts printed in the back of the manual)
may endanger insurance coverage. Additionally, training
programs and instructors are available at AMA club sites to
help you get started the right way. There are over 2,500
AMA chartered clubs across the country. Contact the AMA
at the address or toll-free phone number below:
Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN 47302-9252
Tele. (800) 435-9262
Fax (765) 741-0057
Or via the Internet at: http://www.modelaircraft.org</div><div>
I suppose that if he had actually read the instructions he would have known this.

Well, it seems that short of a brick upside he head, there isn't much that can be done.

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