My dad asked me that same question... why is he doing this??? I'll tell you what I told him... I have no freaking idea, how am I suppose to know why crazy people do what they do? Why do cops put their knees on people's neck for 8 mins killing them? Why do cops shoot unarmed people in the back who are fleeing? Because they're crazy is my answer. Obviously I'm not breaking any laws, otherwise he would have called in for ground patrol and had me arrested.
Dropping fire retardant for no reason near a busy road with no fire around isn't bizarre to you?