Fresh out of college, I supplemented my part time teaching position by working as a natural history interpreter at local parks, leading nature walks and describing the natural history of the animals, plants, etc to groups. I was telling stories constantly, fiction and non-fiction, in the traditional classroom to college-age students, and in the field to folks of all ages. I'm now a full time college professor with children of my own. For me, screenwriting is just another medium for me to tell stories.
While all of my scripts (so far) are works of fiction, I prefer themes and premises that are grounded in reality, stories that explore the extraordinary actions and events that real people create and must react to. I'll leave the the zombie and vampire yarns to the more youthful - to those yet unable to tap the rich experiences of a "well-seasoned" life.