Public transit can sometimes be an extra-sensory experience — especially with some of the ads we see on buses or light rail around the Valley.

When you’re the owners of consignment store My Sister’s Closet, your double-entendre puns like "Wanted: One Night Stand" or "Make a Booty Call," were not appreciated. Those ads were pulled by Valley Metro.

The Phoenix area isn’t alone when it comes to public transit ads causing a stir. New York City, London and San Francisco—among others—have experienced somewhat similar controversies.

For some insights, we called Manhattan Institute Senior Fellow Aaron Renn who is behind the website Urbanophile.