Change your room's access rights to prevent the peasant masses from ever entering! 

You can allow only your very special friends to visit; allow only your crew to enter, or bar everyone from entering your room by locking access rights to yourself only. Nothing wrong with some alone time.  

Enter your room settings by navigating to the rooms directory, selecting "My rooms" then hitting the '!' icon next to the room you wish to edit the settings for, then hit the 'Room Settings' option.

On this page, you'll see the option 'Access'. Tap this and you'll be able to choose who has access to your room.