We discovered shortly after moving here that the A/C on the faithful Subaru was not producing cold air. The oppressive, humid heat here requires A/C long before the height of summer is reached. I took the Subaru to a mechanic close to work for an oil change, smog check, and A/C checkup.
Turns out the A/C System had no coolant in it, probably the result of a long slow leak. The only way to find the leak of a colorless, odorless substance is to add something distinguishing to it and wait. Our mechanic did so, planning to have me take the car and if the A/C failed again, he would be able to find the leak.
But the leak presented itself immediately after refilling the coolant, at 4:45PM on a Friday. There was not enough time to repair the leak before the end of the day, so the mechanic proposed that I take the car and bring it back when convenient to have the leak repaired. I agreed, and got out my wallet to pay for the work done so far: charging the A/C, oil change, and smog test.
"That's alright," he said. "We'll just take care of it all whenever you bring it back in."
"Uhh," I said.
Confused, I brought the car in on Monday for the remainder of the work. A small O-ring needed replacing, and despite the fact that the A/C system needed draining and recharging again, he didn't charge me for the labor or the part. I could have paid the bill in full on Friday, and was shocked that he was trusting enough I would bring it back and pay for the work.