From NPR:

As the NFL tries working through its lockout, one professional football player decided to teach youth from grades one through 12. In April, Denver Broncos safety David Bruton became a substitute social studies and math teacher at Jane Chance Elementary School and Miamisburg High School (his alma mater) in Ohio.

Bruton says he got the idea from his high school coach and teachers. Why did they think he was teacher material? Bruton says maybe it was because he performed well during his own high school and college years, and he had what it took to be a role model. His patience and persistence also helps, he says.

Read more here.