Once I was looking for my keys for about 10-15 minutes being in my hand for the entire time!!!
It has happened with my phone too once or twice, and oh, if one could just ring anything, like you ring your phone to find it!
(As I remember I found out that the phone was in my hand when I was about to ring it with another one...
Here is another thing what used to happen with me a few times: school, being a lil kid, my mind elsewhere, unwrapping my cheese, cheese in one hand, foil in the other, standing above the trash bin... Guess which landed in it? ~roflmao