Are you a facebooker? Chances are, you said "yes". Then I'm taking another guess: Like me, you sit down at your computer to look at facebook "for just a few minutes" and those minutes turn into thirty minutes --- or worse, for some, hours! Has this ever happened to you?
You and I are not alone. We do this maybe even often. Afterwards, we find ourselves wondering where the time went, why we didn't get this or that done that day, or how we could be so caught up that we just had to facebook at work only to get "written up" or fired?
And that brings me back to thoughts. When we think about things in our minds, it is extremely important that we guard our minds to be sure we're not harboring unforgiveness towards anyone, nor thinking about things in such a way that we lack thankfulness to God for His blessings in our lives, causing us to be bitter and discontent. (Of course, I'm not saying that if there is a real problem in ones life, that he or she should not face it and deal with it.) If we think in these negative ways for "just a few minutes", they will quickly take over the day, then the week, then our lives. Before we know it, we will be the biggest monsters, and not be sure how that happened.
So, guard your thoughts. Replace bad or evil thoughts with good thoughts of wholesomeness and gratitude.
Just food for thought.