I bet you could lure them near with a handful of maple sugar candy.
In 2010, video began circulating of a unicorn supposedly cavorting in the Don Valley near Toronto. The video was released by the Ontario Science Centre, along with a tongue-in-cheek press release advising the public to "use caution if they see a unicorn" because "scientists worry that they may harm themselves or others if they end up on a road or highway."
This video has taken on a life of its own on the internet. What was a bit of science center silliness, meant to promote their upcoming Mythical Creatures exhibit, will now apparently live on forever, confusing new generations of kids for generations to come. (Or until the coming Zombie Apocalypse causes the collapse of the internet, obvy.)
Even for a CGI hoax, this one is pretty bad. The keen observer will note that the horse's back doesn't move, giving it the appearance of a toy being wheeled across the background.
Perhaps more fantastical than the existence of a unicorn was the idea that they might be found in the Don River Valley, one of Canada's most polluted sites (outside Alberta's infamous tar sands).
The Don River served as Ontario's toilet for hundreds of years. In the first half of the 20th century, "31 separate sewage treatment facilities were built along the river," plus a garbage incinerator that burned approximately 50,000 tons of garbage per year, and dozens of paint factories and paper mills.
The river was in such epically bad shape that in 1969 a group of people held a "Funeral for the Don." These days the water quality has improved to the extent that it is "not hazardous to the touch, but it is certainly not drinkable, [and is] often unswimmable."
In this context, it's ironic to consider the unicorn. The symbol of purity, its horn was considered in medieval times to be either a cure against poison or an indicator that poison was present, depending on who you asked. One wonders, what color would a unicorn's horn turn, after being dipped in the Don River?
It's nice to think about unicorns cavorting through Canada, which is one of the world's great wilderness holdings. Imagine a herd of unicorns, shaggy in their winter coats, storming across the frozen plains of Manitoba! I bet you could lure them near with a handful of maple sugar candy.
Alas, the tale of the Toronto Unicorn is a fabrication. It's probably more likely that Toronto would play host to cheerful crime-fighting vampires.