Mistress Julia wanted to prank her slave. She knew he had never taken wine before so she planned to make him drink her pee instead. She pissed into a wine glass and she had her own genuine wine which looked like wine. She then made him drink after telling him how expensive it was. The slave drank it and wondered why it tasted off then she told him to taste hers and when he asked about the difference, she laughed and told him he had drank pee.