I got back to my classroom today from teaching in the 6th grade room, and suddenly heard the kids in the English class next door making some noise. I wondered if their teacher had stepped out, so I poked my head in. One of the girls had heard some movement under the bookcase and got scared. So when one of the boys looked, they discovered there was a (about) 4 ft. long green snake nested under a book case. With the other teacher actually there, we got the kids to sit down and called one of the HIS gardeners over. He promptly took some good whacks at it with his rake (steer clear of being very close to ANY snakes you see here!), and the snake was a goner.
A few minutes after the incident, I asked one of the guys if he had a snake book at home so we could identify the snake. He told us he knew how, but when we asked the gardener if we could see the snake again, he had already thrown it over the fence into some bushes on the empty plot there. So we couldn't be sure it was a green mamba, but from what we observed, it seemed to be one. Either way, in Africa, (at least in my opinion) the only safe snake is a dead one.