No. Shave those once, and you never do it again. Unless you're idfml. Long story: to get to the back yard, we have to go around the pool, and there's an oak sapling that's starting to take root - and a larger tree-like thing of indeterminate origin that's branching out into the walkway. It was early-ish and I was taking the dog out for a pee, and I thought...hey, I know where those loppers are...and I never have the time to do this when I get home... So at 4:45 this morning I had the loppers out and started pruning back that stupid tree.