I live Plateau Montreal... dumpster diving is a municipal sport here.
I have been moving and left my stuff on the curb for 45 seconds too long and come down to see it being carted off.
If you see it, you grab it, or someone else will within a few minutes. I have had people phone into work late because they found a dresser or some other thing on the side of the road on the way to work and needed to trot it home first.
Bruce
(Nice thing about having a can of Black Knight and\or PAM handy at all times - You can spray furniture with it as well as enclosures).