In alteration plans, written approval of the National Housing Authority alone is not sufficient. It must be coupled with the written conformity or consent of the duly organized homeowners association or the majority of the lot buyers.

Nighttime or nocturnity was absorbed in treachery since it was evidently an integral part of pecuIiar treacherous means and manner adopted to ensure the execution of the crimes or that it facilitated the treacherous character of the attack.

In interpreting situations, inquiry must be made as to whether or not the agreement is restrictive in the sense that the suit may be filed only in the place agreed upon or merely permissive in that the parties may file their suits not only in the place agreed upon but also in the places fixed by the rules.

For abandonment to arise, there must be concurrence of two things: (1) lack of intention to work; and (2) the presence of overt acts signifying the employee's intention not to work.  While absence from work for a prolonged period may suggest abandonment in certain instances, mere absence of one or two days would not be enough to sustain such a claim.

Non-exhaustion of administrative remedies is not jurisdictional - it only renders the action premature, i.e., the claimed cause of action is not ripe for judicial determination and for that reason a party has no cause of action to ventilate in court.