I despise other people's forgotten things in my house so I would always do a "did you forget anything" and a sweep of my place before they left. This comes from the logging days of yelling at employees who forgot something like a chainsaw on a cutover block 5 hours away that no one would be going back to for the next 80 years.
Why do the heathen rage and the people imagine a vain thing? Psalm 2:1 KJV