the sudden impression of what and whom she has just seen crackles up her spine , and as she whips around to the left , then the right only to have caught no definitive glimpse , merely the backside of this figure as he disappears into the swinging door of some english style pub she glances up and catches the bleached white terror evident on donnas face , as she gasps and loses her grip on the just purchased coffee , which makes like an h-bomb upon hitting the floor .