>>18083196How the hell did you get that so wrong. There was no Praetorian Guard in Augustus' day, his bodyguard was the German Guard.
Also, the thing you're talking about predates Augustus by centuries and was a part of every Roman triumph. The triumph celebratee would ride in a chariot and a slave would stand behind him holding the laurel wreath over his head as he whispered the "thou art mortal" thing repeatedly, to remind the man of the core Roman virtues so he was not overcome with the desire for more.