Even the smaller ones like jackals and foxes are very cleverly sneaking around after prey my friend.
We had one farm dam cleared of all the ducks by sneaky otters.
Recently a lady got out of their car in one of the national parks, as they stopped next to a pride of lions and she wanted to take photos. She didn't make it back into the car.

Yeah, the African elephants are not critters to mess with, even that young one can flip a truck on its side. Problem was that the truck was not too fast, so she followed for a short while to make sure that I was on my way . Like an official goodbye :)