I've had a few memorable ones over the years. Once I bid a job to notch and drop a large sugar maple and trim a few other trees. HO says, I'll call you. Well, a few months go by and he calls for the trimming but said he took down the sugar himself. He's acting all proud he took the rather large tree down himself and after I finish the trimming and am cleaning up the neighbor comes over and asked if he told me what happened. Apparently he tipped the tree over backwards and landed it on his wifes new beamer! No, I said, he neglected to mention that.
Or the guy who calls me a few weeks after my estimate and answers the door with a cast on his arm. I can hear the wife in the living room yelling, "Go ahead Mr Toolman, tell him what you did!" He thought my price was too high and went out and bought a saw and was up on the ladder cutting the end of the branch it was leaning on. When it hinged and swung it took out the ladder, and "Down came Toolman, chainsaw and all"!
But the best one was the guy who thought I was too expensive and tried to take the tree down himself. A few weeks go by and he calls to see if I could finish the job, at half price, as he had taken down half the tree himself. I already suspected the worse, and when I showed up, I found he had taken about half the tree down. The easy part! He left me no crotches to swing the leads that were hanging over the house. I told no, I wouldn't charge him the same price I originally quoted, it was now double! He almost threw a temper tantrum and said it already cost him $500 to repair the cedar fence he crushed. Oh well, pay me now or pay me later...........