Write a story about a little person whose destiny was changed by "a trivial thing"

One day, our family of three went for a walk in the West Bank Park beside Guazhu Lake. Halfway through, an uncle walking in front of us threw an unextinguished cigarette butt to the side of the road, threw it into the lawn, and then walked forward as if nothing had happened. When I saw it, I quickly stepped forward, stamped out the cigarette butt with my shoe, and then continued walking with peace of mind. It’s not just once or twice that I step on cigarette butts on the side of the road with my shoes. Basically, I step on all the cigarette butts I see, just in case. As the saying goes, "A single spark can start a prairie fire." Stepping out a cigarette butt is equivalent to putting out a fire. It is now the beginning of autumn, and the grass is already yellow and dry, making it flammable. Add the sparks from a cigarette butt and it can reduce a lawn to ashes. I once saw a layer of lawn that was completely black when I was walking. I guessed it might be caused by littered cigarette butts.

Picking up paper scraps and stepping on cigarette butts may be just trivial things in the eyes of some ordinary people. It's these little things. If you can't do it, you may miss a lot of big things. Such as the selection of national health city. Maybe because of a few scraps of paper and a few burning cigarette butts, we were not rated, and it would be too late to regret it by then. There are also touching things. Once, I was doing my homework and looked out the window. I saw an old man in his sixties holding the vegetables he had bought in one hand and a few plastic bottles in the other. He bent down to pick up garbage from time to time and put these things away. Trash is thrown into the bin. When I saw this scene, I couldn't help but feel shocked. Such a 60-year-old man could have such virtue. This kind of spirit is really admirable. Even old people in their late teens can do it, let alone those of us who are a generation younger.

We clean up trash, and some people create trash. For example, some people spit everywhere; some people throw paper scraps; some people throw cigarette butts... and some people create garbage while riding in the car. Some people vomit due to motion sickness and stick their heads out of the window to vomit. This not only makes the appearance of the car ugly, but may also be life-threatening due to sudden braking of the car.

So everyone should start from every little thing around them, from stepping on an unextinguished cigarette butt, from picking up a scrap of paper thrown by the roadside, from Start now!