They lose their purpose.
They go back to fighting EACH other.
Game of Thrones Season 4, Episode 9
Or we could walk right behind
EACH other all night.
The Big Bang Theory Season 12, Episode 24
We could also pull EACH other's
tails off and grill them;
The Big Bang Theory Season 5, Episode 13
someone who will keep our
secrets even from EACH other.
The Big Bang Theory Season 11, Episode 12
I don't abuse them to satisfy royal whims
or force them to abuse EACH other.
Game of Thrones Season 2, Episode 10