My brother and his wife were on this flight,he is an airline Captain & told me the evacuation was a complete shambles from beginning to end.(Obviously those congratulating themselves on a job well done are BA people).BA need to look very carefully at this incident and learn some hard lessons.Things were not helped by the poor behaviour of many passengers who insisted on taking everthing but the kitchen sink down the slides with them,one passenger threw his large case down the slide which hit a preceding passenger in the back injuring him.Ten minutes after evacuation announced pax still evacuating!Hardly a job well done.