Had a listen last night, and something struck me as strange. Tanya mentions that at the colony they weren't allowed to do any kind of research into the zombies and that the sweat/scent thing was new to her. But didn't Victor smash some (wine?) bottles when Michael, pegs and Kelly first met him and they were running from Zombies coming their way. Also, he's wearing tons of cologne. He obviously knows about the scent thing, so why doesn't Tanya?