Bletchleyite
Veteran Member
Lots of stock has the ability for the driver to kick a passcom brake application out. I would be surprised if IETs do not.
However, it isn't meant to be done "just because you think people are mucking about", it is meant to be done to allow the train to be stopped as soon as safely possible, rather than somewhere possibly unsafe like a viaduct or tunnel. If a driver proceeded with the view that he was just going to ignore it each time it was pulled, then that would effectively render it inoperative, which would surely not be acceptable on safety grounds.