Ive seen an NJS 146 come within a bees dick of removing the thereshold lights at ph on runway 21 doing exactly this. I'd recommend a read AIP ENR 1.1 para 5.2.2 if you find yourself "using every inch" of runway. I find it quite amusing when such things happen only to observe the subject aircraft creep forward while holding lined up and waiting for clearance to take off.
