It gave me a nasty cough for weeks. Don't skip the respirator, even for quick work.
Got a job at a local bakery. Their AC was blowing hot air. Checked the vents. Full of flour dust and sugar crystals. Looked like a snow globe inside. Had to vacuum for an hour. Owner gave me a box of day-old pastries. Not complaining.
My son thinks it's a game to turn the heat up to 80 in winter because he likes it TOASTY. I came home to a system running non-stop and a HUGE energy bill. Teaching him basic thermostat respect is now part of my parenting, but man, it's a battle. Maybe we need LOCKING covers standard in every home with curious kids.
I see so many guys recommending a whole new system when a $50 capacitor is all that's needed... It feels like we're forgetting how to actually fix things. Just last week, I saved a customer over a grand by swapping a bad relay instead of pushing for a replacement. But everyone acts like I'm crazy for not upsizing the job.