Back during my drinking days I came home one night (actually early morning) from a friend's house after a game of "empty the liquer cabinet". In the morning I couldn't find my car keys. Searched high and low. Finally resorted to using my spare set. Two days later I found them, in the lock of my car's hatchback! These keys had my house keys on them also (I must have gone back out to get something after I got home). I parked in the driveway, so anyone could have walked past and taken them, my car and broken into the house. I quit drinking shortly thereafter.
It's easy to lose stuff, I know because I do it all the time. I put a tool on the workbench, turn away, and when I turn back around the gremlins have lost it for me. The harder I look, the harder they lose it! So I refuse to give them the satisfaction of seeing me go crazy, and walk away. A little while later I'll go back to the bench, and there it is, right where I left it! It's when I put something in a "safe" place that it's REALLY lost!