Horrific apartheid-era happening in South Africa

South Africa has been free of racial discrimination / apartheid for many years now, and no longer are there incidents of white vs. black allowed legally. In fact, the country is rules by a party that represented the aspirations of the black people fighting the white government. So it was all the more surprising to read of an incident where white students at a University tricked some black workers into having some meat stew laced with urine, something that sounds positively horrible:

A South African university said Tuesday it will close the dormitory where white students tricked black workers into tasting stew laced with urine, an incident that sparked protests when revealed earlier this year.
The school became the focus of protests in February, after video surfaced of white students at the dormitory urging at least five black housekeepers to eat what appeared to be beef stew in a plastic bowl. Before serving the stew to the housekeepers, the students urinated into the mixture. At the end of the video, recorded in September, a message appears on the screen in Afrikaans saying, "That, at the end of the day, is what we think of integration."

This essentially shows that there are racial feelings still present among people, and it will be a challenge to get rid of them.