Art. 19.
Every person must, in the exercise of his rights and in the performance
of his duties, act with justice, give everyone his due, and observe honesty and
good faith.
   -   Principle of Abuse of Rights: codifies the concept of what’s justice and fairplay so that the
       abuse of right by a person will be prevented; limitation on all rights
   -   Albenson Enterprises v CA: Elements: (1) there’s a legal right or duty; (2) exercised in bad
       faith; (2) for the sole intent of prejudicing or injuring another
   -   Act must be intentional
Art. 20. Every person who, contrary to law, wilfully or negligently causes
damage to another, shall indemnify the latter for the same.
   -   general sanctions for all other provisions of law which don’t especially provide their own
       sanctions
   -    DBP v CA : Good Faith (state of mind which is manifested by the acts of the individual
       concerned; intent to abstain from taking an unconscionable and unscrupulous advantage of
       another) v Bad Faith (not simply bad judgment or simple negligence, dishonest purpose, or
       some moral obliquity; implies an intent to do ulterior and unjustifiable harm)
   -   Act may be done either willfully or negligently