Somebody, perhaps emboldened by the success of the slogan "No Pain, No Gain, " simply made it up, thinking that nobody would notice.

WSJ: Joe Queenan Asks: Has That T-Shirt Been Fact-Checked? | Moving Targets

"Good retail design is about disrupting the consumer's thinking, getting them to notice you and making them linger for longer, " she says.

BBC: Shopping: The new tactics to get you spending

Confirmation bias is a type of selective thinking in which we tend to notice and look for that which confirms our beliefs and positions, and to ignore or undervalue the relevance of anything that is contradictory.

FORBES: 4 Tips for Reaching Across the Aisle

In the corporate setting when your competence is in question, rather than asking for help you turn to politics, thinking if you make the other guy look bad no one will notice your zits.

FORBES: Congress Motivated By Fear, Incompetence... Just Like Big Business!