You have to have patience to be an HVAC specialist. I remember when I first went to school to become an HVAC specialist, I had in our mind that the biggest part about our job would be fixing cooling systems, oil furnaces, and air purification systems. I remember having a class about customer service, and reading the unusual things you will face with HVAC clients as an HVAC specialist. I thought nothing of that class and figured I needed to focus most on reading how to labor on central cooling systems, smart control units, and oil furnaces, but now that I am an HVAC specialist on the field, I wish I had paid more attention to that class in HVAC school, however one customer gave me a actually difficult time about fixing her window cooling system. I knew what the complication was, and I was in the middle of fixing the window cooling system when she interrupted and said I was doing it wrong. I told her that I am an experienced HVAC specialist and that I had fixed this same complication on a window cooling system hundreds of times. The woman insisted that when her spouse was there to repair the window cooling system, he did it a unusual way. I snapped back and said, “that’s why this window cooling system keeps tearing” evidently that wasn’t a great answer for me so she told me to leave the window cooling system alone and to leave. She left me a awful review on every HVAC website online. I have had so many things enjoy this happen while being an HVAC specialist, if only people trusted me to repair their central cooling systems and oil furnaces, life would be better.