i have had similar things happen
light meters, film, flashes, snoots, chemistry, friends
"stuff" but luckily no cameras yet
i have also had the opposite thing happen
things just appear, not my stuff, at least
not stuff i remember ... and fish in a fish tank ( 9 instead of 6 ) ...
i was told by a scholar that the "stuff" that just appears
is like ... well, it like the opposite of the alien abduction theory ...
the stuff that goes missing, well, it is usually in plain sight
out of view being used in an alternate reality ...
sometimes i find it in the bottom of the cup after a fewcups of espresso