Later in the conversation we were discussing Hawaii, which he didn't know by name. I drew a small map of it in my notebook to see if he understood by the look of the islands since they're pretty distinctive.
After landing I'm checking in and the customs guy asks for some baloney authorization papers that no one at the embassy or capital ever mentioned. When I said I didn't have them he said, "Give me $200." I said no, he said it again. I explained I was on a strict budget and even if I did have the money I wouldn't give it to him. He told his goons to search all my bags.
One of his guys opens my notebook full of the names of all the rebel generals and groups in Congo accompanied by map sketches. Mind you these people have no concept of Wikipedia. I was transferred around after being detained. The first question was, "What is your relationship with General Nkunda?" (an infamous war criminal). Of course the more innocent I made myself appear, the more honed my spycraft appeared to be.
After the initial interrogation I was forced into the back of an SUV with giant people on both sides of me and they refused to say where we were going. I was sure I was going to be shot and put in a ditch or a prison. After asking 100x they said we were going to the airport. We came to a fork in the road, the airport was right, they turned left. That was one of the scariest moments in my life.
Fortunately we were going to the airport, but to my hotel first to get my things, I was deported back to the capital for a second round of interrogation. After that I got a professional translator who was probably one of a dozen people who spoke English well enough in the country to understand what happened. The Minister of the Interior apologized and offered to give me armed escorts to off-limit areas in apology, which I refused and can only imagine was another attempt to see if I was a spy.
TL;DR I'm owed a favor by Democratic Republic of Congo's Minister of the Interior. And now I remember the whole incident was 20 hours, not 12.