With the price of blade hours on a Blackhawk, I really don't think you have any real worries. We do us a National Guard Blackhawk a couple of times a year to eradicate marijuana.
I see them, and H53 Pavelows, and AC130s, F15, F18, T2, T34, TH57, MH6, C17, C5, B1B, B52, AH1, and others daily. I just mark it off like the bumper stickers say, "jet engines, the sound of freedom" and leave it there.