This is extremely dangerous waste which has been left. The waste includes large pieces of wood with nails in and squares of solid iron - 23cm square. The children from my school, who are extremely vulnerable and have complex needs, have discovered this pile of dangerous waste. One of our young people picked up the very heavy piece of iron, photo attached and threw it at a member of staff - narrowly missing her head. On Friday, one of our staff was threated with a large piece of wood with nails in it.