M. Tullius Cicero Pro C. Rabirio Perduellionis Reo Ad Quirites 24

[24] But we see that in the nature of things he must have adopted one of these three lines of conduct: he must either have been with Saturninus, or with the good men, or he must have been lying in bed—to lie hid was a state equal to the most infamous death; to be with Saturninus was the act of insanity and wickedness. Virtue, and honour, and shame, compelled him to range himself on the side of the consuls. Do you, therefore, accuse Caius Rabirius on this account, that he was with those men whom he would have been utterly mad to have opposed, utterly infamous if he had deserted them? 9
  But Caius Decianus, whom you often mention, was condemned, because, when he was accusing, with the earnest approval of all good men, a man notorious for every description of infamy, Publius Furius, he dared to complain in the assembly of the death of Saturninus. And Sextus Titius was condemned for having an image of Lucius Saturninus in his house. The Roman knights laid it down by that decision that that man was a worthless citizen, and one who ought not to be allowed to remain in the state, who either by keeping his image sought, to do credit to the death of a man who was seditious to such a degree as to become an enemy to the republic, or who sought by pity to excite the regrets of ignorant men, or who showed his own inclination to imitate such villainy.