Having spent some time at Lyneham, I cannot for the life of me remember a ‘Scottish poison dwarf’ on the OCU but then again I am getting very old !
I can, I too had the misfortune to have him as my QFI for my initial OCU. His instructional technique did rely principally on shouting and violence, with an ample dose of boasting of his own exceptional brilliance. I loathed him and came close to quitting.