jmmoric,
The wings on helicopters aren't fixed, for one thing. If the rotors fly up or down, the fuselage doesn't necessarily follow.
The only time in 42 years of helicopter flying that I had a problem, albeit very short lived, was about thirty years ago when we were on very short finals to pick up an underslung load alongside a runway and a Chinook flew directly over us, probably less than 100 feet above, when he misunderstood his landing clearance and approached the wrong landing spot.