Hope this comes out as a hyper link...my apologies in advance if it doesn't. Here's a good article to glance at. A B/A crew in a 777 did an intersection T/O, from the wrong intersection. Happened last year, and nearly a disaster. Could've easily been avoided with simply a taxi brief. Can't believe they don't do that at B/A.

BA passengers tried to halt 777 take-off after taxiing error