"NOOOOO....cut the other line....for the love of all that is good in the world!!! Do not cut here!!!"
When we are marking panels with grout or cut lines....we do it right EVERY time....we never *&^% up and need to clearly mark the area NOT to cut.
Basically that says....I screwed up/changed my mind....cut the other line.
Which usually works, but not always, I have been know to cut the wrong line...more times than I would like to admit.
Just incase you thought that the Davis Graveyard was all perfect and magical....trust me my friends....we make a LOT of mistakes...some of them over and over again.