If everything is so sad, then what prevents courteously weighing such "guests"? But, apparently, you are not so sad as long as you tolerate. And why then dwarf?
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Everything is right. In addition, from really close relatives, also obsessed with a sense of tact, just so, that is, peacefully, you will not get rid of. When our second child was born, we lived in very difficult circumstances. So when the mother-in-law began to rush to come to help (for a couple of thousand kilometers and for a long time) we refused, explaining in detail that there is no place and there is no place for her to sleep. A couple of days later, the mother-in-law was standing in front of the door with a deck under the mouse. She decided that she would sleep in the kitchen, so the problem was solved.