At my house:
One flatmate lost his father whilst we were living together, and his mother was coming up with a sister to stay at ours whilst her house was redocorated (the father had died at home). My other flatmate announced that she couldn't stay in the house with them, so would stay elsewhere for a few days, so I asked if we could put one of the visitors in her room, to save having to have someone on a sofa. She replied that whilst I was welcome to sleep there, she didn't want any of the grief-stricken people in her room as it would disturb her angels...!
Same flatmate was greeting on the stairs by my sister, three days into my sister's visit, with the words "Oh you do exist, I thought you were a figment of my sister's imagination!" Up to this point my flatmate had been managing to avoid my sister fairly successfully, on my advice, and could see why I'd suggested she kept out her way. During the same visit my sister, at that point in her late 30s, had come into the lounge with a LARGE bar of chocolate, offered me and my mother ONE square each, then stretched out on the floor like a teenager and proceeded to eat the rest of the bar herself. She didn't offer my other flatmate any when he walked in, just ate the whole lot herself. Then, after I used my flatmate's phone to make a pretty important call (I had no credit on mine) she insisted on using his phone also, even though she didn't know the guy, to ring her husband, as her phone was "upstairs". Lazy cow!
Finally, we had friends of my male flatemate staying with us a few days. I'd never met the woman and her daughter before, so was rather put out to be told by the mother, on about the second day here, that she'd gone into my room and taken the washing that was drying in their and put it on the line, smalls and all. Ok, so she had the best intentions at heart, but really, did she have to...?