(1) The donor may rescind a contract of gift in favor of the donee for the reasons as prescribed in the following subparagraphs:
1. If the donee has committed an act of crime against the donor, his or her spouse or lineal relatives by blood;
2. Where the donee is under duty to support the donor, but does not perform this duty.
(2) The right of rescission mentioned in the preceding paragraph shall be extinguished after the lapse of six months from the day on which the donor was aware of the occurrence of any cause of rescission or at the time when he has declared an intention of acquiescence.