I remember the Gatwick one on Christmas Day 2000, OddOne.
Departing BA 777 on 08R. Aircraft had earlier come in from Africa. He had not been spotted on the turnround at LGW. Took some time before he was moved from 26L threshold. I suppose Coroners are difficult to get hold of on Christmas morning.
On Africa night departures I always leave all the taxi/exit lights on in order to have a fighting chance of spotting them if they run out.They are most likely to give it a go as you are sat at the holding point for departure.
Very, very sad.