If it is the anti-gun activists who are planting the ammo to get the crowd nervous and further their anti-gun message, they must be on a minimal budget. Ammo is not cheap, but .22LR is cheaper than other ammo on a round for round basis. ($2.49 per box of 50 hollow point Winchester High Velocity at Cabela's this past weekend). We who love and respect the 2nd Amendment to the US Constitution would not leave ammunition lying about. Such a thing would be irresponsible both fiscally and from a civic minded Citizen's point of view.