Why I Love the Romans

Adrian Goldsworthy, Caesar: Life of a Colossus, page 148:

In spite of his obvious guilt, Clodius was acquitted after he and his friends mounted a concerted campaign of intimidation and bribery. For the final session, the jurors requested and were granted guards for their protection. When they voted thirty-one to twenty-five for acquittal, it prompted the scornful Catulus to say, “Why did you ask us for a guard? Were you afraid of being robbed?”

That’s a good book — the Gallic wars are even more interesting.