Walk like an Egyptian
Read about Smirnoff‘s account of an international transfer at Cairo. I trust his back has recovered by now.
One of the things I like about Flyer Talk is how well travelled FTers are and how freely information and advice is given. No matter how obscure the airline / destination / ticketing / routing, there is likely someone (or more likely lots of people) who has been there before and can help smooth the way for you by identifying pitfalls.