Storm came through and needed to cut trees to get out of the driveway.Cut my way to the neighbors and Charlie Knapp asked if I wanted to make a few bucks on the weekends helping him out. It was a good expeirence as Charlie worked for Geer Tree Service in Brookville, PA. He was good enough to show me how to take down the really tall difficult trees without hitting houses or garages or buildings. First tree was 125' maple between a house and garage less than 10' between them. Tree was hollow for the first 25' and you could stand inside it. Got it down without scratching anything and I was hooked. Charlie worked for 28 years without a major injury and one day he was cutting the top out of a dead tree when it kicked back at him and broke his face in 7 places. Doesn't matter how long you have been doing this or how good at it you are, trees are dangerous. I've never been hurt but you have to be careful and pay attention to what you hear.