Why did the man want to go to Africa?

W: You’re leaving Brighton! But why? What are you going to do?
M: I’m going to Africa. I’ve got a job as a doctor with a medical team.
W: What ! You’ re joking !
M: No, I am not kidding, Rosie. I’m going to miss you very much and I don’t want to end our friendship.

M: Excuse me.
W: Yes?
M: You can’t park here.
W. But it’s only for a few minutes. I’m waiting for a friend.
M. This is a taxi rank. You can park in the car park round the corner over there.