The Chandala said One's own self is the best judge, while discharging the duties of his own caste or family. You yourself know which of those two acts is sinful. He who would consider dog's meat as pure food, I think, would not shrink from taking anything and everything.
श्वपच उवाच आत्मैव साक्षी कुलधर्मकृत्ये त्वमेव जानासि यदत्र दुष्कृतम्। यो ह्याद्रियाद्भक्ष्यमितिश्चमांसं मन्ये न तस्यास्ति विवर्जनीयम्॥