This morning I called to my son to give him instructions to get ready for school.
He didn't respond.
Not being able to go look for him I called louder.
He answered and said he was just in the next room.
Then I asked, "why didn't you respond the first time I called?"
To which his reply was,
"It went in one ear and out the other."
I laughed at his literal interpretation of the phrase. Still laughing.