For this job I performed a evaluation. Homeowners stated that on 7/2/25 the thermostat said low battery and was not turning the air on. Homeowner changed the batteries but it still said low battery on it. After a while the unit kicked on. While I was there for the evaluation the homeowner did not want me looking at anything except for the thermostat and changing it out if needed. I suspected the thermostat was faulty I didn't mention that the Delta was very low when in the Attic. Homeowner was very rude the entirety of the visit and did not care about the delta or anything else as long as the system was cooling. While I was programming the thermostat I heard the homeowner say get the f*** out of my house. I apologized to homeowner if I was making them upset. I was only able to change the thermostat out and told the homeowners if for some reason the cooling is not efficient it is for something other than the thermostat but I was not able to do a full evaluation because homeowner wanted