Hate to do it, but...

My neighbor asked me to address the tree on my side of our joint built cinder block wall as he said the roots are buckling his garage slab and cracking the block wall. I had no problem getting it cut and poisoned and he even kicked in 33% (down from original 50% but better than nothing!) The walnut tree (?) Had a base root ball of over 3 feet wide and found that it took out my foindations retaining wall and displaced it 6 inches. Still need to contact insurance about that....