Who among us has not done the same?
I've used my phone as a flashlight under furniture to search for the phone that's in my hand.

usuallydead said:

Who among us has not done the same?
I've used my phone as a flashlight under furniture to search for the phone that's in my hand.

for me I reflectively check for phone while I was walking with phone in other hand browsing memes

I guess the most common is checking for your phone in your pants' pockets and having a shock for not feeling it, even though you had it in your hands the entire time.