Something abuot Arrow is not rational In the episode fifth.Lance catch Oliver.Oliver want to use polygraph to prove his Innocence.The police use the suspect's suggestion.It's too baloney and not rational.Then，the Fake Arrow Diggle attack the criminal.How ever Oliver stay at home.So,Lance think Oliver is Innocence.But,you should find Diggle doesn't use arrow.Lance should feel strange,but he doesn‘t do this.He release Oliver at once. So,I think that two points is not not rational.