Our hassle with an eticket was in Kenya, a few years back when BA cancelled their flight out of NBO to JNB. It took hours to get us switched over to Kenya Airlines. We knew of the cancelled flight before we ever left home. On arriving at Heathrow, the BA agent said she showed that the flight would be operating as usual, but AA said it showed cancelled. We went to the BA city ticket office in Nairobi and they said the flight would operate as usual. Of course, when we got to the airport, it was not operating. It's just lucky for us that we got to the aiport 3 hours early and were able to make the Kenya flight. Had we had a paper ticket, it would have been a lot less trouble at the airport.