Watch Good Boy Bad Boy (1985) Official Trailer

In the work two monitors are displayed at head height on pedestals. The head and shoulders of a young black man appear on one; on the other is an older white woman. They both speak the same sequence of a hundred phrases five times, beginning in a flat neutral tone, and becoming increasingly animated and intense until by the fifth recitation they appear very angry. Their techniques of delivery are quite different, and result in a slippage of time, so that played on a continuous loop, the two tapes become out of sequence.