The hotel I stayed at in Ipanema had a no guests policy. We started chatting to a man that was staying there as his partner was staying with his mother round the corner (house not big enough for all of them to sleep comfortably) and when his partner went to the hotel to collect him one evening, he was not allowed to go up to his room. When the guest complained to the management, he was told that this was a family hotel and no visitors were allowed.
I wonder how often that rule will be broken during the world cup and Olympics?