The host of NPR’s “Wait Wait…Don’t Tell Me” provides a clever guide to excessive misbehavior and the culture of vices.

Somewhere, somebody is having more fun than you are.

Orso everyone believes. Peter Sagal, a mild-mannered, Harvard-educated radio host—the man who puts the second "l" in "vanilla"—decided to find out if it's true. From strip clubs to gambling halls to swingers clubs to porn sets and back to the strip clubs (but only because he left his glasses there), Sagal explores what the sinful folk do, how much they pay for the privilege, and how exactly they got those funny red marks.