Out of interest, is there an official form of words for ATC to use in these circumstances?
The UK CAP413
here (PDF download link) details the phraseology to be used in Chapter 4, point 4.41 (page 18) and states:
When an aircraft is about to take-off or has commenced the take-off roll, and it is necessary that the aircraft should abandon take-off, the aircraft will be instructed to cancel take-off or stop immediately; these instructions will be repeated.
G-CD, hold position, cancel take-off I say again cancel take-off, acknowledge
BIGJET 347, stop immediately I say again, BIGJET 347, stop immediately, acknowledge