How does a cartoonist get an idea that will strike a chord with people everywhere?

Here is the cartoon by New Yorker cartoonist Liam Walsh that quickly went viral:

And here's Walsh discussing, in a New Yorker video, how he came up with the idea:

CLICK ON THE PHOTOGRAPH TO ACCESS THE VIDEO LINK.

Also read:

• When furniture get nightmares

• Telling it like it is... with cartoons

• One of India's most famous cartoonists, Hemant Morparia, bemoans the decline (and possible early death) of the political cartoon in India. (Scroll down to read the item on Morparia.)

• A Commits alumna's long-drawn affair with illustrations