No I think you communicated your story just fine. But when you mention "park" here, most of us (I believe) picture a park in a rural neighborhood where there are houses within 1/4 to 1/2 mile, and a street within a hundred (or so) feet.

We also recognize the fact that a glow powered trainer is easily capable of 50 mph which means it could reach one of those houses within about 20 seconds or, if badly trimmed (as MANY trainers are) and not really under anyone's control, could pull a half loop, followed by a half roll and park itself in your buddy's chest.

Is any of this likely considering your intentions? No of course not, but that's what an accident is, something happening that no one intended.

Knowing the fact that at least two people were killed this year by RC planes (and the media ramifications of those tragedies) makes us all a little "gun shy", and prevents us from saying, "Ha Ha, what a great story".

Just my two cents.
Dennis-