I'm not sure but here's my story:

My girlfriend and I went for a weekend to a jazz festival. We were staying at an old house her daughter was staying in while in college at the time. I don't sleep with my rings on. I'm very particular about where I put them if I'm not at home so I will remember where they are. We were getting ready to leave for the festival and went to get the rings. They weren't there. I panicked and asked my friend to help me. We searched, I kid you not, 1-1/2 hours. We overturned everything. Eventually, I walked back into the bedroom stood looking at the bed and replayed the night before. I turned around back to where I had put them ( a black case where the gold would stand out). I yelled for me friend. She ran in and I was just standing there pointing. I told her I had moved that trunk three times and never saw them nor did they fall. She said she had actually rubbed her hand over the trunk and down the sides. We were both freaked out.