Board Thread:Speculation House/@comment-27404492-20170708180328/@comment-26397825-20170918131459

Sorta? It was a running gag. From the Director's commentary for Black and White:

136. Kerry: So, uh, during the uh, the, the "Black" Trailer, at one point Monty was contemplating cutting a train in half. (Monty chuckles.) Which Miles' response to that was "Yeah, that's really cool, but it's way too early to do that."

(Monty chuckles.)

137. Miles: She's not powerful enough yet!

138. Kerry: She's not powerful enough yet. Which, y'know, essentially lead to him not doing it.

139. Miles: But Shane (Monty chuckles.) wouldn't let it go. And he kept saying "Now we're gonna cut the train in half. We're gonna cut, we're gonna— no. This is the episode where Ruby cuts the world in half."

He really wanted to cut something in half.