Cannabis retailers are fending off shorter lines on the second day of legal recreational pot but are already out of certain products or supply altogether, prompting some to turn customers away.
He and his friend Alex Lacrosse were smoking a joint when two police officers walked by.
Most pot enthusiasts were exuberant about the end of prohibition, but a few expressed disappointment over not being able to buy the now-legal marijuana on the first day.
Recreational marijuana is now legal across Canada, giving millions of people the right to buy, carry and grow cannabis.
Pot smoker Ian Power said: "I am going to frame it and hang it on my wall".
"I actually thought I was going to be a couple blocks back, but I was really shocked that I was the first person here", Prett said.
The Canadian Medical Association Journal called the government's legalization plan an "uncontrolled experiment in which the profits of cannabis producers and tax revenues are squarely pitched against the health of Canadians".
A man shows cannabis products bought at the government-owned SQDC store in downtown Montreal on October 17, 2018. Hundreds later lined up.
The stores have a sterile look, like a modern clinic, with a security desk to check identification.
Dazed and confused. The legal framework around cannabis use is set to be a regulatory labyrinth. A small team of employees answer questions but don't make recommendations.
Ontario, home to Canada's most populous city, Toronto, will have no stores until April 2019, with online sales the only avenue to get legal product due to a change to the province's retail model by a new provincial government. Rules regulating the use and sale of the drug, however, will vary throughout Canada's 10 provinces and three territories. Four others will license private retailers, while British Columbia stands out for its mix of both options. Tracey Lindeman reported from Montreal. You must follow local laws.
At present, the legal sale of pot is limited to fresh buds, oil, plants and seeds.
At a federal level, consumers will not be able to smoke wherever they want and can not travel with marijuana across worldwide borders, even if the destination has legally authorized the possession as well.
Driving under the influence of drugs is still 100 per cent illegal. The government has given police the tools to shut down illegal cannabis store operators.
In neighbouring U.S., nine states and the District of Columbia have legalised marijuana.
As with most things, it's all about quality, however pricing weed has to be done in accordance with what you could buy illegally before.
However, President Trump also nominated Jeff Sessions as his Attorney General, and Sessions is a known opponent of marijuana.