[Brian is writing graffiti on the palace wall. The Centurion catches him in the act] Centurion: What's this, then? "Romanes eunt domus"? People called Romanes, they go, the house? Brian: It says, "Romans go home. " Centurion: No it doesn't ! What's the latin for "Roman"? Come on, come on ! Brian: Er, "Romanus" ! Centurion: Vocative plural of "Romanus" is? Brian: Er, er, "Romani" ! Centurion: [Writes "Romani" over Brian's graffiti] "Eunt"? What is "eunt"? Conjugate the verb, "to go" ! Brian: Er, "Ire". Er, "eo", "is", "it", "imus", "itis", "eunt". Centurion: So, "eunt" is...? Brian: Third person plural present indicative, "they go". Centurion: But, "Romans, go home" is an order. So you must use...? [He twists Brian's ear] Brian: Aaagh ! The imperative ! Centurion: Which is...? Brian: Aaaagh ! Er, er, "i" ! Centurion: How many Romans? Brian: Aaaaagh ! Plural, plural, er, "ite" ! Centurion: [Writes "ite"] "Domus"? Nominative? "Go home" is motion towards, isn't it? Brian: Dative ! [the Centurion holds a sword to his throat] Brian: Aaagh ! Not the dative, not the dative ! Er, er, accusative, "Domum" ! Centurion: But "Domus" takes the locative, which is...? Brian: Er, "Domum" ! Centurion: [Writes "Domum"] Understand? Now, write it out a hundred times. Brian: Yes sir. Thank you, sir. Hail Caesar, sir. Centurion: Hail Caesar ! And if it's not done by sunrise, I'll cut your balls off.