Meet chet, the wise and lovable canine narrator of Dog on It, who works alongside bernie, a down-on-his-luck private investigator. Chet might have flunked out of police school ("I'd been the best leaper in k-9 class, whi...Meet chet, the wise and lovable canine narrator of Dog on It, who works alongside bernie, a down-on-his-luck private investigator. Chet might have flunked out of police school ("I'd been the best leaper in k-9 class, which had led to all the trouble in a way I couldn't remember exactly, although blood was involved"), but he's a detective through and through.