CANANDAIGUA NY — A substitute teacher at Canandaigua Academy was arrested earlier this week after he allegedly tried to buy marijuana from an Academy student. Todd B. Christensen, 34, of Penn Yan, was charged Tuesday by Canandaigua City Police with unlawful possession of marijuana and endangering the welfare of a child. He was taken to Ontario County jail in lieu of $2,500 cash/$5,000 bond. At his arraignment Wednesday, Canandaigua City Court Judge Stephen Aronson lowered the bail to $1,000 cash/$2,000 bond and issued an order of protection for the teenage informant. He also adjourned the case for one week because...