Safi Al Sahen is excited. The six-year-old refugee from Syria just arrived in Canada this summer, so he doesn't yet know a lot of English. But he does know the colours of the bandanas adorning the Teenage Mutant Ninja Turtles on his brand-new backpack. "Ninja!" Safi says as he points to the bag. "Red. Blue" "Purple!" his little brother Rafi, almost three, exclaims. "Purple, orange, green," Safi continues, ignoring the interruption