3. Mrs. S borrowed P20,000.00 from PG. She and her 19 year old son, Mario, signed the promissory note for the loan, which note did not say anything about the capacity of the signers. Mrs. S made partial payments little by little. After several years, she died leaving a balance of P10,000.00 on the note. PG demanded payment from Mario who refused to pay. When sued for the amount, Mario raised the defense that when he signed the note he was still a minor. Should the defense be sustained? Why?

4. C, husband of D, sold paraphernal property in her name without her (D's) consent. Was such sale valid, void, voidable, rescissible or unenforceable? Explain.

5. Cite an example of a contract which is contrary to morals.