Dogs, and such Brahmanas as are polluters of lines, should not be suffered to look upon the offerings made at Shraddhas performed at a place that is properly hedged around or concealed from the view. That spot should also be covered with sesame seeds.
तिलैर्विरहितं श्राद्धं कृतं क्रोधवशेन च। यातुधानाः पिशाचाश्च विप्रलुम्पन्ति तद्धविः॥