I agree with you Iain, Africa is very beautiful, but dangerous when compared to first world countries like the U.S and Western Europe.
Friends of mine fly professionally in Africa and it is a regular practice to use cargo planes without any seats to transport as many people as they can cram into it. Not the safest idea I suppose.
Regarding the drinking and driving in South Africa...
I lived in South Africa for 18 years and a lot of people did drink and drive but South Africa is a hell of a lot more advanced than the rest of Africa. We have road-blocks setup to issue the equivalent of DUIs. The traffic cops have breathalisers and arrest drunk drivers all the time. It's illegal and drunk drivers ARE prosecuted. But I suppose they way S.A. is going now
, I wont be surprised if you could bribe your way out of a DUI.
Unfortunately, Rum was a lot more expensive than Coke though