Has a kernel of corn ever been promoted to brigadier?
Has anyone who has just been a little bit naughty received lance-corporal punishment?
Are Generals demoted if they get too specific?
Are Petty Officers promoted if they demonstrate they can rise above all that pettiness?
And as a counterpoint to the above idiocy, here is a true fact:
The lowest rank in the Duke of Lancaster's Regiment, British Army, is not private, it is Kingsman.