>> in here. >> and bang on the door. >> let us in. >> they try the handle. >> this really isn't funny. >> is she okay? >> they're sticking together. >> thank heavens, huh? >> no, she's not okay. >> we think they've seen enough and done enough. >> all right. i'm going to go in first. hello. hi, guys. so i go to speak to the teens. at first, i don't tell them this was all a ruse. will they tell me what happened? >> i'll tell the story. she saw him put something in his pocket. i haven't seen anything. >> can i tell you what i saw? >> were you here? i don't think you were here. >> i knew it. >> i'll tell you what i saw on hidden cameras. >> i told you. >> fiona is relieved this isn't real. >> was it really hard and uncomfortable? they didn't believe you. >> it happens that people won't believe that, but it is a real thing that does happen. >> dr. jacqueline sacco, who's been watching from our control