Titus also assumed command of the Guards [before becoming emperor], a post which had always before been entrusted to a knight, and in which he behaved somewhat high-handedly and tyrannically. If anyone aroused his suspicion, Guard detachments would be sent into theatre or camp to demand the man's punishment as if by the agreement of everyone present; and he would then be executed without delay.
Just in case you thought the previous post about Titus portrayed him in too positive a light, here's one to bring his image back down to earth. Or at least back to where most emperors reside.
You know, in Rome. Where they build massive arches to honor them.