You can blame blunders like this for many of the “never do that” lectures the old-timers give you — you know, the ones you toss aside and never give a second thought to. Those pearls of wisdom came from somewhere, and probably from scenes like this.
Remember, kids, always check to make sure the flow is shut off when you cut into a pipeline. At least it was water and not sewage or something really nasty.
How Not To Use A Power Saw [YouTube]