My mum had been away at a labor conference for about a week.
This was when the last lockdown was lifted.
I had anxiety about leaving the condo and to overcome it, I had started going to the backyard or the town park in the early days or late days when there were not a lot of people. I was watching some online videos when I thought of pranking our mum when he came back. This was just to bring back some fun to our life. I came up with a system to use the regulator for the prank. Mum enjoyed our whole condo heating system; She had invested a lot in the hybrid heating and the most recent heating device, the radiant floors that were just in the powder rooms and in the basement. The HVAC corporation had recently run a maintenance check on the fireplace mum had built in the sitting area. The prank was to use the voice-controlled programmable thermostat to lower the hot and cold temperatures so he would recognize there was a problem with the 2 devices. Since mum was in the sitting area, I lowered the hot and cold temperatures of the gas fireplace first and moved to the hybrid heating system. Mum got so frigid that he was about to contact the HVAC professional for help with indoor comfort when I turned on the heat again. After a while, I reduced the temperature. The yoyo effect got mum calling the neighbor to help provide the required heating and cooling services. When the HVAC techs mentioned that they were headed to the provider with the request to purchase a ductless multi-cut unit, the people I was with and I were a little surprised as the people I was with and I had recently replaced our unit. The prank worked but I got grounded for it.