The tree was there first, and by my own observation, grew slowly by the man-made brick wall.  I have been walking by this corner for six years.  A year ago, when the first cracks in mortar appeared, I barely noticed.  Now, as bricks begin to crumble and fall, I know they never had a chance unless the tree died.  The lesson for me is simply put:  Growth pushes boundaries.  I would rather grow.