You could fix it yourself. That's what I always did. Back when I rented, I called the landlord four times. Two were when the pipes froze and burst in the place under me, and no one was there. The door was locked so I couldn't get to it.
Another time was when a line to the toilet broke. It didn't have a shutoff, and I panicked. I left a message on his machine. After a minute I collected my thoughts, and stopped the leak with a rubber band. I called him back, and canceled the emergency.
The other time, the sewer line was clogged. The people below me put stuff in the toilet that shouldn't have been there. Otherwise, I fixed issues myself, or let the landlord know so he could fix things at his convenience.
The world doesn't operate with perfect precision, and it's unreasonable to expect it of other people.