NORRIDGEWOCK — A Canaan man is accused of firing a shotgun out of his pickup truck after getting into an argument at a Main Street convenience store Wednesday afternoon. Alex James Brickett, 20, has been charged with reckless conduct with a firearm, a Class D crime, and may face other charges, according to Somerset County Sheriff’s Office Chief Deputy James Ross. Police were called to Martin Stream Road shortly after 1:30 p.m.