PooPrints Canada has set up shop at the Affinity in the 2200 block of Douglas Road. Their mission: to collect a DNA sample from every dog in the building.

The pooprint. It's the latest way some landlords are getting dog owners to scoop the poop. “They do a doggie DNA for all the dogs in the building, and then if someone's not cleaning up after the dogs, they can find out who it is,” dog owner Kevin Mullan said.

As the number of complaints about dog waste in the city has doubled over four years, a Toronto company said it might be able to track down inconsiderate owners through DNA testing.