Majjhima Nikaya 4:21
SUJATOSo manasikaraṇīye dhamme appajānanto amanasikaraṇīye dhamme appajānanto, ye dhammā na manasikaraṇīyā, te dhamme manasi karoti, ye dhammā manasikaraṇīyā te dhamme na manasi karoti.
So they apply the mind to things they shouldn’t and don’t apply the mind to things they should.