Felicity Smoak: I should've taken him to a hospital.
John Diggle: No. That's why he asked you to bring him here. He knew the police would wanna know how and why he got that wound.
Felicity Smoak: I'm guessing "how" and "why" are Oliver Queen's least favorite questions.
John Diggle: Yeah, well, there's also "when" and "where," he's not too fond of.
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From: Arrow