We've all seen it as we drive down the road; a person in the car in front of us flicks a small object out of their window, and it falls to the ground, hardly visible.
We drive on and, most times, we probably don't think about it again.
The object is a cigarette butt, and we've all seen it. Do we call 911 and report someone for littering? No, of course not. It's just a cigarette butt.