there is this small tree. not sure what it is, the leaves are green and are shaped like little maple leaves. it has thorns, like an inch long, and sharp as a razor. mowing near one today, i got thorned across my forhead bad, i look like i was in a knife fight. of course i freaked, and cut the tree down to a stump. i WILL bill her for it too. would it be acceptible to put in contracts from now on , "client is responsible for maintaining a safe work environment, including trimming/pruning of low hanging limbs that obstruct our work area. client agrees that if trimming of such is neccesary, and not done by our 3rd visit, it will be done by us, at our discrimination, at clients expense. "