Expenditure in respect of the dismissal or premature retirement of, or for the purpose of securing the resignation of, or in respect of acts of discrimination against, any person which falls to be met by the authority except such expenditure which falls to be met from a school’s budget share, by virtue of section 139 of the 1996 Act, section 57 of the 1998 Act or the authority’s scheme (within the meaning of the 1996 or the 1998 Act).