The moron should never have been that close to the helicopter.
Perhaps he is used to bully everybody, but this is an expensive and dangerous piece of hardware with bits moving very fast.
Like someone said earlier, he could have taken the registration and called the police.
There is no way we can mitigate for all the idiots on this planet who think they are above the law, be it the law of the land or the laws of nature.
The pilot complied with the law, informed residents and did his best to be neighbourly.
If the offender really is a millionaire who has flown on helicopters, he should have known better than to throw something at a tail rotor. Besides, since when has throwing stuff at other people or objects been acceptable? He got mad over a bit of dust on his car..then tries to fling chicken bones at a helicopter?
12 months serves this guy right. And I certainly would not have waited for an idiot who already had demonstrated severe lack of common sense to come and open my door.