The mother of a Minot boy is suing a substitute teacher for negligence after her son was assaulted by another student in the classroom while the teacher was out of the room. According to the complaint filed Wednesday in Androscoggin County Superior Court, Joel Clavet attended Lewiston Middle School in May 2011 when he was assaulted by a classmate referred to only as John Doe. The Sun Journal, reports that Clavet’s mother, Maureen, says in the suit the assault occurred when the substitute teacher was out of the classroom talking to another teacher in the hallway. The teacher knew John Doe had “behavioral issues,” including “a proclivity for violence.” Joel Clavet suffered a facial cut that required stitches. Maureen Clavet is seeking damages, including attorney’s fees.