Well it is most likely that you are only 13 and this country is so youth focused and if you are over the age of 20 something you are discarded like yesterday's news. you see someone that is 49 who knows all there is to know about what ever it may be,, he could be a mathematician or she could be a pianist. He could be a pilot. and flew across the ocean in a pedal powered plane no one really notices, but a 12 year old can play a piano and all the world is a rage. It is not your fault just the society's fault. And the best time of life to me was at your age. I can't stand adulthood I hate it almost as much as I hate satan! Some people hate kids they really do and he don't like kids from what you describe. The thing is, is he is the jerk not you. If he means something to you ,, win him over. Offer to work for him for old cleaners and earn his respect. usually those are the kind of guys that will take you under their wing. I was the same way. I am not a vacuum expert and I am getting more into them,, I build console stereos and when I was a kid, I would ask questions and questions to where I pissed off most of the tv shops in my home town. then I met this other shop owner and got a job working for him, he was the crustiest person I met and I was afraid of him, I earned his respect and we became friends and I learned so much about stereos and that is where I learned about McIntosh amps and all. I worked for old stereo equipment and that was when I was your age. go to the guy and earn his respect. Old people sometimes hate kids,, that is just the way it is,, I am tired of the youth focus myself and I am only in my early 40s,, It is wrong and uncharitable , but at the same time God may be wanting you in his life to start liking kids. you never know. I hated kids myself then I was forced to get a job driving school buses and now my attitude is much more adjusted. I think you need to kill him with kindness. and put yourself in his shoes. trust me when you become 20 something 30 something life is going to really suck. take my word for it. I would give all I own to be 13 again. cause adulthood really sucks and that is putting it mildly.