It happened to my husband and me, once in our lifetime....the object was on a glass coffee table, the last time we saw it....then gone! I brought the hubby in the room to see if he had moved it....he said no....he last saw it on the glass coffee table...we needed it before we left on our trip... We searched everywhere we could have put it, in every room in the house...at least ten times...the whole house including the coffee table has been gone over with a fine tooth comb, looking for it....
We were going on vacation to a cabin in the Maine woods.. The directions and key to open it, was in an envelope on the coffee table...we couldn't leave without it.
2 hours later the hubby and I go back in to the living room for the 100th time, and there sitting on the coffee table in clear view, was the envelope we were looking for...
I accused him of hiding it and putting it back, he accused me of hiding it and putting it back!!! Both of us were searching together as a team room by room and no way did either of us want to delay leaving for vacation...we knew neither of us had, after our accusations...then, we looked at each other and started humming the theme song to the Twilight Zone! And have brought up what happened over again the next 30 years...