Yes It is a interesting scenario, especially when you test it at the sim. MTOW, rwy contaminated, balance field, hot temp (not such an impossible scenario!).
An other interesting scenario is when the PF is the left seat (PF-Cpt) and you obliged the right seat (PM-FO) to call just the malfunction! 8 times out of 10 the PM call the malfunction 5 kts prior V1 and the PF starts the reject 5 kts faster then V1 and we all know the final results.
How many seconds it takes to decode the malfunction, verbalizing what do you think it might be the problem, reaction time from the PF and actually starting the reject?