to airborne-artist: I guess, you'd better avoid a hard landing ;-) Even so I like to play around with the choppers I fly, you better stick to the numbers, key points and so on an play it safe - when flying with NVG, always putting on an additional safety margin - just for the case to come.
Nato has already dropped leaflets in Afghanistan requesting the Taliban not to use SAMs/AA against their helos at night, in order to avoid NVG-induced neck injuries following hard/crash landings