When Marlene Bryenton's adult son suffered a mental health crisis last year, he left P.E.I. and ended up living on the streets in Toronto. She tracked him down with the help of strangers on Facebook, but struggled to secure treatment because her son suffers from anosognosia — a condition where people do not understand that they’re sick. Bryenton tells Matt Galloway why she thinks the system needs to force help on those who don't know they need it; and what it’ll be like to have him home for Christmas this year.