I recall watching a POTUS, Nixon I think it was, arriving by VH-3 at the ABC studios in Hollywood, which were embedded in a residential area. The smooth and deliberate low angle approach created a fairly impressive trail of flying dirt, dislodged landscaping and a considerable amount of roofing material from several homes. I spoke with one of the advance crew after the excitement died down and his comment was “yeah, well, it’s part of the cost of doing business.”