Stay in Your Own Sled (Russian: Не в свои сани не садись, an idiom meaning "Don't bite off more than you can chew,") is a play by Alexander Ostrovsky, written in 1852 and first published in the No.5 (March, book 1), 1853, issue of Moskvityanin. It was premiered in the Maly Theatre on January 14, 1853.