(NEWSER) – An Oklahoma man says he wound up stuck in a storm drain for two days because he was chasing after a $20 bill. The unnamed man somehow fit his way into a storm drain that was just 42 inches in diameter, trying to get the bill he dropped in the drain. He wound up 12 to 15 feet underground, then got lost in the confusing city drain system. A group of high school students ended up calling 911 after hearing the man's cries for help from deep underground, and police rescued him. His only injury: a bump on the head ... but he never did find that $20. Newsy reports: