After Richie gets out of the oven in the spiky bikini, (they call it underwear, but I don't think it is because the spikes would show through your clothes), Eddie comes in and sees him and Richie tries to explain but then says never mind about that now. Later on when the man who is a guest at the hotel finds the CCTV video, Eddie sees Richie on it in the bikini but doesn't know who it is. He tells Richie about the man on the tape and then starts to realise it is Richie. But Eddie saw Richie in the bikini earlier on, and you don't forget something like that...