In 1986, Mkele Mbembe was on holiday in Kenya after graduating from college. On a hike through the bush, he came across a young bull elephant standing with one leg raised in the air.
The elephant seemed distressed so Mbembe approached it very carefully.
He got down on one knee and inspected the elephant's foot, and found a large thorn deeply embedded in it.
As carefully and as gently as he could, Mbembe worked the thorn out with his hunting knife, after which the elephant gingerly put down its foot.