I lost my truck keys for 2 years one time. I moved my truck so I could back the RV up to do some maintenance and cleaning. After returning the RV to its parking space, I COULD NOT find my truck keys. I had made several trips during that time, grocery store, hardware store, gas station, etc. I retraced all of those steps asking about lost keys. No Joy.
About 2 years later, I replaced all of the tires on my RV, including the spare in the rear basement. I had to clean out the rear basement so they could get the spare out.
Yep, the truck keys had been riding in the rear basement that whole time.