Because he was coffin...
Hand them a mechanical pencil with the lead out and see how the use it. Child A: look mom I'm a doctor! - expect them to live to 80+ years. Child B: look mom I'm a heroin user! - expect them to live to about 27.
Doctor: It depends, how old are you Patient: I will be 24 soon. Doctor: Pffff, no you won't.
You can't dip a vampire in your tea.
Wait for him to give it back.
The coffin has the corpse on the inside.
They're both filled with stiffs one's coming one's going.