Idiom: watch one's back
— I have to watch my back at this office because people are unfriendly and it's a real rat race.
— Watch your back when you're traveling abroad because there are lots of pickpockets at the train and bus stations.
— Watch your back when you go out to bars so no one slips anything in your drink.
— I always watch my back since I started law school. It's very competitive.
— Watch your back in New York City—people there will take advantage of you if given the chance.
— To succeed in reality television competitions, you have to watch your back and form alliances.
— It's crazy but I actually have to watch my back around my own "friends."
— If you don't watch your back, other people won't hesitate to steal your ideas in this department.
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