Last time I did that, the Doc died and the game ended because I shot dead the main character
Anyway I prefer a scientist that runs for his life than a dumbass who waits at my feet for me to shoot him down.

yup btw, in this game it's the player who's supposed to follow the Doc, and not the contrary, so in fact this case cannot happen
All the other NPCs look in the right direction... why wouldn't they so ?