The negative, the guy who was supposed to take a look at my duct problem didn't show. The positive, the ducts didn't bang this morning so he didn't waste a trip to come out and listen to nothing. But of course after waiting around for him for an hour and a half I had missed all my express buses as well as the 190. So it was a cold walk to the mall and then a second cold walk to my building. I've rescheduled the appointment for Friday, hopefully I can figure out a method to the banging by then.
And in unrelated news, I had fun at badminton last night.