"You Can Always Make Some More Blood"

"Don't worry Leon, you can always make some more blood." I heard Luke say it in passing, consoling his friend as I was on my way to somewhere else. Not having heard what came before or after, it struck me as both hilarious and intriguing. I couldn't help but try to bring it up again. When next Luke and I met on the playground, I said, "You can always make some more blood." "It's true, Teacher Tom!…