Sextus is often annoying Davum; Davus does not love Sextus. Marcus and the slave catch sight of the girl. Magna's voice frightened the girl. Magna's finger climbed onto sextus. Davus, who heard the crash, is angry.
TBH I would feel a little upset he lied. But I would be more happy to be able to learn more French. And I do think that deaf people would feel the same way, if not worse.