In a bid to keep the homeless from sleeping outside their buildings, it seems some Londoners are resorting to medieval tactics: deploying inch-long spikes to render sidewalk-sleeping impossible.

The luxury apartments are not the only place in London where sidewalk spikes have popped up, and not all sidewalk spikes are meant to keep the homeless from taking shelter, some say.

“The studs (outside a Tesco store) were put in place to try and stop people engaging in anti-social behaviour like smoking or drinking outside our store, which can be intimidating for our customers,” a Tesco spokesperson told the Telegraph.