The school bus stop is school property. I learned this in my CHL class last Saturday. The boys shot their airsoft guns at students that were standing on school property. That is not for debate.
I had a Daisy BB gun at about the same age. You never point a gun at another person. That and treat all guns as loaded is all you really need to know about gun safety. Them boys got in trouble. If I had done similar with my BB gun, I would have been suspended, had my BB gun taken away, and been grounded for months.
No sympathy from me.