I was plane spotting at SFO today and witnessed a rejected takeoff by a Cathay Pacific 777. It turned out to be caused by a runway incursion, details here: https://docs.google.com/presentation...it?usp=sharing

Quick thinking by all involved -- good thing the DAL crew called out their mistake of stopping past the hold short bars and ATC canceled the clearance in time for Cathay to stop before reaching the DAL.