Orestes’s question here is rhetorical; Sophocles is actually implying that great harm can come from deceit, even though Orestes says the opposite. Faking one’s own death was incredibly taboo in Greek society and was viewed as a bad omen, so audiences in ancient Greece would have been suspicious of Orestes’s confidence here. Additionally, Orestes’s plan to leave hair at Agamemnon’s grave is an allusion to ancient Greek literature more generally. Locks of hair were a token of mourning during ancient times, and in Aeschylus’s
The Libation Bearers, Orestes knows his sister, Electra, from the locks of hair she places on their father’s grave.