Shouldn't you?

Pat yourself on the back whenever you can answer this with "You are wrong, I'm doing exactly what I should be doing at the moment."

I think it applies to many people who get distracted easily and end up loosing track of the actual task, but...
mostly I addressed it at myself.
Ironically I was about to work on something different before I got drawn to draw him.
In the end he turned against me and started nagging about that issue
In other words I got distracted by something reminding me of not getting distracted...

Art-wise I was playing with line pressure and edgy face aspects (which both is fun) and later on splashed a color bucket at him.

So yes, when I started out I should have been doing something else, but I love what came out of straying so after coloring I'm not able to give a black-or-white answer anymore. ^.^

P.S.: This SHOULD be a motivational poster's motto.