Most of my guests have been normal, reasonable guests. Family have been better behaved as guests than when I visit them.
Same here. No problems with family at all.
The only problem I ever had with house guests was when I lived in Las Vegas, where I spent several years. Since LV is such a hot tourist attraction, I would occasionally have "friends" - well, more what I would call acquaintances - show up on the door step or call a few days ahead, and say "We're coming to Las Vegas for a week. Would you mind if we stayed with you?"
Most of the time I would just state that it wasn't convenient (and it really wasn't, since I went to school during the day, worked nights, and slept weird hours), so I usually just recommended some inexpensive lodging options and then arrange to spend a little time with them.
The few times I did have guests, things always seemed to go south. They would overstay their welcome, or noisily return home in the middle of the night and wake me up, or break things in my condo. One "guest" dumped an ashtray down the garbage disposal, which then proceeded to clog the drain.
So I tend to be a little pickier about house guests these days. Or at least I try to be. Coincidentally, our daughter is having a couple of her college friends (a boy and a girl) come to visit and stay with us this next week. I don't anticipate they will be too much trouble, but we'll see.