Not pecans. Ammo!
My brothers and I used to collect a couple of grocery bags full of them from the trees in from of our house and stash them on the tank support of the swamp cooler on the building next to the church on the street. On Sunday mornings, we'd hide up there and throw them at peeps going to/coming from church. Later, we'd go out and recollect our ammo.
'Twas fun being an adolescent!