I have hidden spare keys on all my vehicles and machinery, know how easy it can be to forget and lock your keys inside, or lose them and have misplaced keys to machinery and the bus a couple of times before getting extra keys cut. Also have spare keys for things in the workshop and house, no matter how awake you are, you can still lose them. Not the far in the past opened my car to put stuff in the back and put the keys on the back seat, shut the door and went back to get more, forgot if you don't open the drivers door when unlocking, it locks after 30 seconds.
My neighbour is the ultimate key loser, she is always asking me if I've seen her keys as she always just puts them down anywhere and then forgets, Done that with her teeth as well, which was hilarious, so told her to put a chain on her teeth so she always knows where they are, didn't go down very well, but she finally found them in her bed.
