Use wedges or a felling lever to keep the backcut open and help force the tree over. Anticipate which trees may be struck as your tree falls. Plan an escape route in advance, then get away quickly from the falling tree. Survival - Move or protect workers anywhere within two tree lengths of the base of the tree. Watch out for thrown branches as you make your escape.
Dead hardwoods seem to be particularly prone to crown shatter.
A shifting or rolling log can catch your leg, knock you down, and crush you. Survival - Stay uphill from any tree on a slope. Anticipate how the tree will shift and roll as branches are cut. Never stand in the area from which the roots were pulled. This springpole contains a large amount of stored energy.