Implementing the goods and services tax (GST) will be a "lazy" way to increase government revenue, says Pakatan Rakyat.<br /><br />The GST, if announced in the federal budget tomorrow, would be "addictive" and the government would never reduce it once it introduced, PKR vice-president Nurul Izzah Anwar said during launching of Pakatan Rakyat's shadow budget in the Parliament building today.