You're having a nice, friendly chat with your spouse/friend/relative when all of a sudden said spouse/friend/relative berates you for being ignorant. (Huh? What'd I say?)
You're hungry and have a plate of food in your hands then you put it on the floor and moan that you're hungry.
You hardly notice when a spacecraft lands on your property and an alien emerges. (Happens every day!)
You invite people to a party, they show up, walk toward the front door, then turn around and leave. (Others start yawning with boredom the second they arrive)
Ghosts are put off by the sight of other ghosts.
You're invited to spend the night but come 3:00 am, you're out the door!