The snails pose a health risk to humans because they carry a parasite called rat lungworm, which can cause meningitis

that's not good

Giant African land snails are illegal to own as pets in the United States. But some exotic pet owners still keep the invasive pests. If the owners discard them into the wild or accidentally lose them, they can quickly establish a foothold, feeding on over 500 different plant species and even consuming the paint and stucco off houses as a source of calcium.

This little beast will eat your house.