At the border my Visa was expired by one day, so the conclusion for them (particularly a woman working there who can't speak English) decided to confiscate my passport without explanation. You can imagine how livid one might become at this moment. I nearly lost it, all the harassment, all the authorities without brains telling me what to do wrong, I just couldn't handle it anymore. However strong my efforts nothing changed. A few hours later a man came to my rescue who knows a little English and he explained to me that my passport is to be mailed back to Addis Ababa to immigration there. I thought why the hell couldn't they have made an easy phone call or done it like every other country in the world where you pay a late fee at the border. This made life incredibly difficult. I had to take a bus back to Addis to retrieve my passport and pay a late fee.
A modern explorer recently finished a voyage of walking across Africa entirely by foot and kayak.