If you know without a doubt they have gone through boxes/drawers when alone in your house (boxes piled in another room) even admitted to taking something out of an unmarked box to borrow. But you never made a fuss of it (was in far too much shock at the time to respond appropriately!)

Would you ask them to mind your house for a couple of weeks?

Not that I have really anything to hide, so to speak, but my personal stuff is just that, my personal stuff. Our personal stuff.

Would you?

ETA Said snoop being a family member so the expectation is there that they would be asked.....