Institutio Oratoria

There are however a number of topics which are inserted in the midst of matter which has no connexion with them, when for example we strive to excite, admonish, appease, entreat or praise the judge. Such passages are

innumerable. Some will have been carefully prepared beforehand, while others will be produced to suit the occasion or the necessity of the moment, if anything extraordinary should occur in the course of our pleading, such as an interruption, the intervention of some individual or a disturbance.