Over and back, That's a rule?

Have I crossed the line?  What is the line anyway, and how will I know I've crossed it?  Is there such a thing as "over and back" in life as there is in basketball?  Yeah.  YES!  
(I always tell my children to reply "yes" rather than "yeah".  Say it and think about it.)

There are a TON of lines:  good/evil; bitchy/sweet; honest/cagey... to name only a few.  We all cross the line. But, the difference is the lines we cross.  Some lines are mood-related, some are human nature like good vs. evil, and the remaining are sometimes choices. 
Inside my head right now I am hearing Johnny Cash's song "Walk the Line".  If you have never listened to this song before, go to YouTube right now and listen.  Seriously.
Interpretation.  Isn't that life everyday?  It's all interpretation.  I hear you and can interpret it totally different than what you intend.    Happens all the time when my husband opens his mouth to speak.  Yep.  It all comes down to interpretation.