The olive tree is the toughest tree in the world. It is a tradition in
Spain I think, to beat the trees with a stick to get the olives off. Then
the wounds from the beatings are compartmentalized and great visual barrier
and reaction zones form. They then cut the tree and make coasters out of
the beautiful wood. Try a stump grinder.

Sincerely,
John A. Keslick, Jr.
Arborist
http://home.ccil.org/~treeman
and www.treedictionary.com
Beware of so-called tree experts who do not understand tree biology.
Storms, fires, floods, earthquakes, and volcanic eruptions keep reminding us
that we are not the boss.