In New York City last week, across from the library, there was a man pacing on the sidewalk, barking something hysterically at the top of his lungs. Everyone was avoiding him, even crossing the street to avoid getting anywhere near him.

It wasn’t until I listened closer I realized he was working for a local business, yelling, “20% coupons for window shades! 20% off! Window shades! Get your coupons here!”

Painfully ineffective.