When you land in Ndola, Zambia...
Yup, same bunch of clowns forced us as a crew to leave the air side at what amounted to gunpoint, then locked us up for not having the correct stamps in the passport allowing us into the country. We were passing through not leaving the air side, to pick up an aircraft to be ferried.
Zambians pride themselves on not being corrupt. All this means is that the price is higher should you fall foul of one of their little cons.