I'm sure some of you have seen the so-called "spikes" popping up in London to prevent homeless people from sleeping rough outside the posh properties in that city, infested with billionaires. There is something similar here in Mtl. outside Archambault, a historic music store in the Latin Quarter, now selling books and other "stuff" as the market dictates.
Even if you don't read French, look at the photo. Other than the fact that they treat human itinerants like pigeons, they strike me as dangerous to anyone walking by who is a bit clumsy, not to mention people with low vision.