My sibling worked for a single summer time as an assistant at a local Heating & A/C dealer & now he thinks that he knows all that there is to assume about heating, ventilation, air conditioner, & air purification, however it’s pretty aggravating to myself and others because I undoubtedly do assume just about everything about the heating & cooling profession; That’s because for the past twenty years, I have been the owner of a local commercial heating & cooling business, then not only did I get my Heating & A/C certification straight out of high university, however I’ve also been doing continuing education for the past more than one decades, any time that new Heating & A/C technology comes out on the market, I’m the first a single to sign up for a class or lecture or tradeshow so that I can go & learn all about it. But then of course my younger sibling, who is an absolute know-it-all, goes to work for a single summer time as an assistant to an Heating & A/C professional & all of a sudden, he knows just as much as I do about gas furnaces, cooling systems, & air purification systems. I say that with all of the sarcasm that I can muster. Anyway, it’s gotten to the point where I can barely stand to be around my own sibling. He just won’t shut up about all of the things that he supposedly knows about the heating & cooling industry now, but some nights, my patience is shorter than other nights. I’m not a violent man, however I’m afraid that a single day I might just punch him in the mouth or something!