Here's one that happened at my place yesterday just about at dusk.
My wife was on the front porch in a rocking chair talking on the phone to her sister. A pickup pulled about halfway up our main driveway and stopped about a 100' from the house. A "scraggly-lookin' guy" (wife's description) gets out and asks if he can 'borrow some gas'. She told him we didn't have any (not a lie, as we just used the last of it to top off the ATV....not that we owed him an explanation).
After she tells him we didn't have any, he asks her if her husband is home (this is the part that got me). She said yes, let me get him. And, as she backs in through the front door, she calls out to me (I was down in the Den, but could see her at the door) the guy gets in the truck and backs out and leaves.
I asked her questions about his appearance and how he acted. She said he acted 'funny....nervous'.
I sat out on the porch for a while and could hear something going on down the road, but out of sight. I got to wondering why he needed gas if he was able to drive off in his truck. I got on our golf cart (very quiet engine) and rode out to the edge of the property so that I could see down the road. It was then that I saw a second vehicle about a 1/4 mile away that was 'apparently disabled' and they were messing around with it. Finally all of the people (3 or 4, couldn't tell from the distance and poor light conditions) got into the guy's truck and left, leaving the second truck sitting in a neighbors driveway.
Needless to say, my hopeless insomnia was not aided by the event, and not much sleeping was done (looking out at every sound).
I'll be even more wary than normal (even for me) for a good while, since home invasion is one of the top crimes in our region.