I don't like it. Even friends, I like to know a day and time they're visiting. I'm the kind of person who changes into pj's/slobbing around stuff as soon as i'm in the door, bra off, messy hair tied up out of the way. I've never been confident about how I look and I just find it really intrusive. It's my home and I should be able to relax any way I want, not be on constant alert in case someone turns up. Am I just really antisocial and strange? 