Scary experience when the HVAC tech almost died repairing my system

My unit had been behaving weirdly the whole of fall.

I had done minor troubleshooting on it but it would get better for a day then go back to its previous bad state.

It was making weird noises and I had noticed that the quality of indoor comfort was not the same. Boiler installation had been done over a decade ago and I knew it was time to get a new heating unit. I had just been postponing the call to the heating corp. I paid for this delay a week into winter when the electric heating system stalled and shut down just as I was settling down to start working. I switched to my oil heater and space heater for my heating and air conditioning needs as I waited for the HVAC tech. It was unfortunate that these units did not use a wireless thermostat as I had to keep adjusting the temperature until I got the perfect one. When the experts came, they went ahead to dig up the earth where the geo heat pump was to be placed. Since it had rained heavily the previous night, there was a landslide and all I heard from the kitchen was a loud scream. One of the servicemen had fallen inside the hole but he was not completely buried. He only sustained minor cuts and bruises. He refused to call an ambulance and insisted he was fine. They proceeded to install the unit and even provided a pamphlet of energy saving help tips and a schedule for the first furnace/heater tune-up. I know the technician was shaken up and so was I. However, I was glad that they had done a good job and that the injuries on the young man were not as serious.