CM Punk has pulled back the curtain on the production of live WWE television, revealing what he calls one of the "secret rules" of professional wrestling. The rule explains how and when top superstars are allowed to go over their allotted time for a promo or match.

For a man who once ripped through WWE with a live mic and a grudge, CM Punk sounds remarkably chill about timekeeping these days. Pulling back the curtain is all the rage in WWE’s Netflix era —