Residual alcohol from a bevvie, 12 hours previously and very marginal fail - stow the outrage bus, could happen inadvertently to all sorts of people in all sorts of professions.
'fessed up at the first opportunity and took it like a man.
62 years old...
Sir, I hope your pension fund is sufficiently full. If so, stick two fingers up to the world, dust down your golf clubs and fishing rods and enjoy a happy, slightly early, retirement.