To be honest i dont think fake evicting charley would do much cos she seems to have an argument and then carries on as normal, then an agrument and so on and the housemates dont even ssay much about her now, just that shes a pain to live with whereas Nicky would learn all sorts what they have been saying and the other housemates would watch her interview where she learns about what they think of her, making when she goes back very awkward