My classic examples are a lost caulking gun and a leather belt. He couldn't find the caulking gun, and said it had been at the entrance of the garage. I insisted I've not even been in the garage and wouldn't help for 45 mins, while he went through everything in the garage. He pleaded nicely with me to help so I went to look. It was where he left it, at the entrance of the garage, but he had thrown some cardboard recycling on top. 'I didn't think to look under". I found it immediately.
The belt was longer ago. He would pack a big, leather belt, jeans and a nice shirt in his bike bag, cycle to work, shower and change once there. After a month off over the summer he told me he couldn't find it, and where might I have put it? I said, after a wipe down at the beginning of summer, I had put it back in his bike bag, which is kept at the back door, ready to go. He said he looked there, where else might it be. I said it's in the bike bag. I haven't removed it. He said it isn't there again, where else might it be? Well, the basket at the back door, the laundry room, his closet... He looked and looked and insisted I help and as I had small kids I wondered if I had lost it and forgotten. Sleep deprivation is very difficult on the memory. So I looked for over an hour. Finally, in frustration, I said, 'Are you sure you looked in your bike bag?' He said, 'Yes, look for yourself. It isn't there.' Well, I looked and there it was. 'Oh, I didn't look in the big part!' It's a big belt, and doesn't fit in the little pockets and it is always in the big, main section. Insane.