Thanks for letting me know. What is it that you are looking for specifically?
I wouldn't drag it out, just make him be specific.
If he's gonna ask again about the ties or the boots, make him do the work of actually saying it. (Then let him do the work of actually asking his son to give him his boots back, if he must. No need for you to be the go-between.)
Of course, he might actually be missing something, and it might be in a closet or drawer somewhere, so go ahead and inquire what he's missing.
Odds are he doesn't even know, or it's something you already gave him long ago.
