But, just in case, he decided to watch his back for the next hour or year.
Now he was going to have to watch his back.
But he also will always have to watch his back.
It was good to know when to watch your back.
If nothing else, you'll need me to watch your back.
It is the place where you must watch your back.
Only this time you're not here to watch my back.
Or rather, I'm going in and you're coming along to watch my back.
Now it is time for Smith to watch his back.
As if someone who was supposed to be watching her back wasn't.