Last Black Friday at Best Buy Toronto, My friend was juggling a line that looked like it stretched to Mississauga when his manager whispered, “Act normal… the demo TV just froze on a karaoke app.” He turned around and there he was on-screen, mid-high note from last year’s staff party. Customers started cheering like it was planned. He kept straight-faced, said, “Limited-edition feature,” and somehow sold three TVs off his accidental performance.