Our neighbors are driving my wife nuts with curiosity. He is a divorced retired Air Force officer. He has a yard service keep his yard in top shape. He does not have junk piled up. He is quiet and minds his own business.
What is driving my wife crazy is he will rent a U-haul van or sometimes a panel truck and park in it his driveway for a week.

This has been going on for over a year. The van will go away for several weeks and come back for a week or more.
We can't imagine why he would rent a van for a week at a time and park it and not move it all week. It is in his driveway and not in anyones way except his.
I figure whatever he does with the U-hauls is not my business. He is quiet and not bothering us and he his not asking for me to help him load or unload anything so I don't care.