Which is why we practised releasing the Koch fasteners both when being dragged across the grass at AMTC North Luffenham and in the oggin at SCSR Mountbatten during pre-OCU courses. Our fasteners also had a pin to be released before the finger-biting Koch fasteners could be opened.
Don't forget that some of us wore Immersion Gloves as well. Difficult to release Koch fasteners but would be near impossible to operate touch screens or computer pads. What do RAF fast jet pilots wear when flying over very cold oceans these days?