[Z]

I've discussed this a couple of times now but do you think Sam and Ollie are keeping quiet because they're so used to being filmed all the time? They are both famous for being on scripted reality TV shows and being filmed for their "real responses to every day life" - perhaps they went in with a strategy of keeping quiet at first to see what happened with the other housemates and quickly realised that the others are all fairly terrible people and have decided to have nothing to do with them, not get involved in any of their arguments and just hoped to come out of it looking great because everyone else would do a hatchet job on themselves?