It takes two to tug-of-war...unless, of course, you choose to battle people in your head.

The Thinking Behind The Tweet

It takes two to tango; it takes two to tangle; it takes two to tug-of-war.

And, more often than not, the two must bring an excess of emotion to escalate the situation.

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Sometimes it only takes one to tango, tangle, or tug-of-war. We all are quite capable of dancing with and fighting with imaginary foes in our heads.