OK, lets take the previous "ILS Situation" and assume that you are cleared to take off on 18L on this same, slightly foggy night. As you lift off and stow the gear, you see the landing lights, coming right towards you, of this other guy who sidestepped over from the ILS 36L to land on 36R without saying anything to anybody. Do you assume that he is going to land and you try to climb over him? Do you assume that he sees you, and will initiate a go-around, so you try to go out under him? Do you assume that, whatever he does, it will be straight ahead, so you try to turn onto an offset course to parallel the runway heading and continue as cleared? Honk the horn really loud? What?