I grew up around the theatre (which is probably obvious from how I spell it). My mom was a director (primarily); one of my earliest memories is of getting a crush on one of the actors auditioning for one of her shows. (I was about 5 at the time.) I spent much of my childhood and adolescence hanging out in the background while she was at rehearsals, or coaching actors, or meeting with technical folk, or what have you.
So when I heard this "rant" — which spiritualmonkey pulled up on YouTube under the title "Christian Bale Goes ApeSh#t on Terminator 4 set" — well, I dunno. Can you say "wow" at how non-"wow" something is?