RULES concerning recovery of debts shall also apply to resumption of gifts. Invalid gifts shall be kept in the safe custody of some persons. Any person who has given as gift not only his whole property, his sons, and his wife, but also his own life shall bring the same for the consideration of rescissors. Gifts or charitable subscriptions to the wicked or for unworthy purposes, monetary help to such persons as are malevolent or cruel, and promise of sexual enjoyment to the unworthy shall be so settled by rescissors that neither the giver nor the receiver shall be injured thereby.