... of course, that is always on our mind .... the reason why one ought to declare a very serious level of emergency and dictate to the ATC folk what one's requirements are ... like making sure that everyone knows that there will not be a missed approach. ... etc
.. clearly there is no percentage in driving into the idiot who lined up ... the choices are ... miss if above the sensible minimum (plus a bit for the new clearance consideration), fly over the bandit (very hazardous), or do a sidestep and land on the grass ... none are palatable ... the management trick is to do everything practicable pre-approach to avoid such problems eventuating ..