Victoria, Laguna – The Department of Trade and Industry (DTI) Laguna Provincial Office, through its Consumer Protection Division, further inculcates the five qualities of a responsible consumer: 1. A consumer must be critically-aware. S/he must question the use, price, and quality of the products and services before buying them. 2. A consumer must take action. continue reading : DTI-Laguna reinforces the qualities of a responsible consumer