10 seconds is not too much, even if the intrusion is accidental.
If I am in a rp with someone, naked...you get the idea. That nakedness is for only who I am with, not with some strange visitor.
It doesn't matter to me if they rez or not. you have 10 seconds to vacate said premises. Plus no one can even cam into said parcel since parcel privacy is now on every region(if you have it enabled from land options. This is off by default). All people had to do was fly before and get within 500m or so, extend draw distance and cam you.
I want privacy for my friends house, for me, and anyone who visits. When people showed up before the orb, they didn't care who you were and went about their business of walking through your home, clicking on everything, trying to turn on the tv, watch a movie, whatever.
You want to explore, fine...no problem with that. Ask first.
It all boils down today to people having very little respect for anyone else but themselves. This god like complex that people have is really irritating. I cannot stand most people and to boot, they are so full of themselves. This alone is why my friend and I have a 10 second warning on his orb.