According to Mzansi Life, 3 members of a Limpopo family tried to weaken a pool of crocodiles with muthi given to them by the Sangoma. The brothers were then supposed to rape a female crocodile to remove the curse on their manhood.
The muthi failed to weaken the all the crocodiles and the three brothers were killed. Two bodies were recovered and one was consumed by the crocs.
It is unknown if the ritual worked but by the look on their faces it probably did.