The owner of an apartment building contracted with a painter to paint the porches of the apartments for $5,000. the contract was specifically made subject to the owner's good faith approval of the work. the painter finished painting the porches. the owner inspected the porches and believed in good faith that the painter had done a bad job. the painter demanded payment, but the owner told him that the paint job was poor and refused to pay. the painter pleaded that he was desperately in need of money. the owner told the painter that she would pay him $4,500, provided he repainted the porches. the painter reluctantly agreed, and the owner gave the painter a check in the amount of $4,500. the painter went to his bank, indorsed the check "under protest" and signed his name, then deposited the check in his account. he never returned to repaint the porches. the painter sues the owner for $500, which he believes is still owed to him on his contract to paint the porches. will he prevail?