Brought my wife home from the hospital after giving birth to our second child. In the process of getting her and her stuff into the house, I had set the baby carrier down beside the car.
Got her and her stuff into the house and got her settled in. I started doing some other things then it hit me: "where's the new guy?"
I suppose we weren't used to having him around. He was fine and we laugh about it now. But, I'm sure if he'd been out there for hours and died it would be a lot different.
LOL - Did the same thing, only I had set him down just inside the door. Remembered him 5 minutes later.