Blood's a Rover

Harlan Ellison once claimed that the sequel to A Boy and His Dog would be titled Blood's a Rover.  Tonight, as I was reading some poetry, I came across this line in "Reveille" by A. E. Housman: "Clay lies still, but blood's a rover".  Poem basically says wake up and live your life because the eternal sleep is just around the corner.  Cheery, I know.

But now I'm all happy and excited with wondering if Ellison got the title from this poem.  Doesn't take much to make me happy sometimes.