Embarrassingly I once lost a hamburger while still holding it.. I had my arm propped up on a the back of the chair and it was just out of my peripheral vision. Not my smartest moment.
I lost my sunglasses when I was wearing them! We were going to a state park for a hike. It was a 2 hr ride for which I was wearing my sunglasses but forgot. As we came out of the car to start the hike, I spent 5 minutes searching for my sunglasses in my backpack until my friend asked what I was searching for .... Maybe I should be saying "sunglasses on" from now on
Funny, there is a Polish rhyme [1] for children based on the same concept: a person searching the whole house looking for glasses which they were wearing all the time :)