An Ontario hospital foundation pulled a Toronto-area home from its annual lottery prize offerings this week after realizing it backed onto a residence where legally grown marijuana sent out an “an intrusive odour,” but police in the community say there’s little they can do about such situations. The incident involving the Markham, Ont., home meant to be a prize in the Princess Margaret Cancer Foundation’s 2016 home lottery has highlighted the issue some neighbourhoods face with residences that hold Health Canada licences to grow marijuana for personal use.