In Laaz, especially the western parts, the friendly people are wrongly accused of being inhospitable.
As a matter of fact, to have a guest is for them great honour. However, guests are never given lodging in their house or main living room, it is always in another. Nobody besides the family and most trusted friends or servants is allowed in the most inner and private parts of a house. To poor people, it is a single room. Wealthy people have often a 'house in a house', a reserved part of their palace. The custom is interwined with religion (the area can be blessed by a priest only from outside) and laws (if proven in a trial, one can kill a stranger in his inner house without being sentenced). Occassionaly criminals barricade themselves in their houses to escape guards, and unless the crime is severe, they are not forced to leave, merely guarded and maybe 'smoked out'.
It is of course a great honour to be invited inside.
(Whether the custom comes from problems with demons, doppelgangers, vampires or whatever, or is simply a proof of their isolationist nature, is left on your decision.)