Paul was calling to check my interest in an assignment: predict the future of customer service in light of Gen Y and social media and then, draw a line in the sand in the form of the date by which this new service model should be in place.

FORBES: Missing: Gen Y

To create a faux molding, a straight edge and pencil are used to draw a line, then shading is added with paint to give the look of a curve.

WSJ: An Artisan Who Can Turn Paint into Stone | Creating

But until then, having robots not impersonate people seems like a reasonable place to draw the line.

FORBES: Humans Vs. Robots: Who's On Top?

Local tribal chiefs then intervened, but Ali fears a line has now been crossed from which it is hard to draw back.

BBC: NEWS | Middle East | Baghdad diary: Delayed, 16 years