1. Service call at night... Complained that her house was "GlOwInG" orange. Sure enough all the vertical seams of the aluminum siding were glowing orange. Touching the siding and being grounded could have been painful. "I didn't try it". She lost her ground and since the service outside was screwed through the aluminum it found it's path.
2. A tv antenna of a house struck by lightnig. Every nail in the aluminum siding was blown out of it's hole.