It is important to recognise that businesses that start off with a consent or with a permit that says "You must pay forward a bond or into an after-care fund because something might happen and we don't know what will happen in the future."—it is commonplace that those arrangements are made at the time of consenting large long-term operations like landfills, for example, like waste-water treatment and other types of sites which actually handle quite harmful materials, where, if something went wrong, it would be local government or central government that picked up the pieces and paid the bill. We've seen that a number of times over the past few years.