I went to the movies while waiting for the HvAC technician

I had to call the HVAC company to request that they do our maintenance on the furnace prior to winter. I keep that date on our calendar so that I know when it is time to have the maintenance done. I even write it down so I can remember when I need to change the air filters. Anyway, when I called the HvAC company, they gave me a date when they could do the furnace maintenance. They also told me that they would be at my home between 8AM and Noon. I figured that I had plenty of time to run into town, because I had never had them show up at the earlier time. Normally, the HvAC technician would show up later than what was planned. So, while I was in town, I decided to take in a movie. Like every other movie-goer, I turned off the volume while I was in the theatre. I never expected to have the HvAC company to call and tell me they were at the house waiting. I didn’t even turn my phone on until I got home. I called the HVAC company and that’s when I realized the volume was still off. I turned up the volume and I asked the lady who answered the phone, when the HVAC technician was going to show up. She told me he had been there at 9AM and if I wanted another appointment, I would have to set it up and be there this time. That’s when I realized I had a voice message and it was from the HvAC technician.
Electric heating