Plutarch, Galba
Bernadotte Perrin, Ed.

12. Now Vinius was to the last degree and beyond all compare a slave of money, and was also addicted to loose conduct with women. For when he was still a young man and was serving his first campaign, under Calvisius Sabinus, he brought his commander's wife, an unchaste woman, by night into the camp in the garb of a soldier, and had commerce with her in the general's quarters (the Romans call them ‘principia’). [2] For this offence Caius Caesar put him in prison; but on the death of the emperor he had the good fortune to be released. While he was at supper with Claudius Caesar, he purloined a silver drinking-cup, and Caesar, learning of it, invited him to supper again the next day, and when he came, ordered the attendants to set before him no silver plate at all, but only earthenware. [3] This misdeed, it is true, owing to the comic turn which Caesar's moderation took, was thought worthy of laughter, not of anger; but what he did when he had Galba under his control and was most influential with him in financial matters, was partly a cause and partly a pretext for tragic events and great calamities.