Boys wearing jeans and hooded sweatshirts stand on a sidewalk , and one of them is holding a black plastic bag .
There is a better than even chance that the boys are going around the neighborhood cleaning up litter .
There is a better than even chance that the boys are going around the neighborhood cleaning up litter .
Chances are slight that the boys are going around the neighborhood cleaning up litter .
The boys are going around the neighborhood cleaning up litter .