" How often do you have to drink?”
“Every night, to feel good. Every few nights, to stay sane.”
“Have you ever bitten anyone?”
“No. I’m not a murderer.”
“Does it have to be fatal every time? The biting? Couldn’t you just drink some of a person’s blood, then walk away?”
“I can’t believe you’re asking me this, Snow. You, who can’t walk away from half a sandwich. "

― Rainbow Rowell , Carry On (Simon Snow, #1)