Cupcakes, bacon, sriracha. Food has trends, just like fashion. Why do some edibles garner nearly cult-like followings? Tracy and Holly talk about their favorite fashionable treats, and touch on a few that are on the way out of the spotlight.

He creates worlds and characters that fans fall in love with, but what is it, really, about Joss Whedon’s work that’s so engaging? Can the soon-to-be-released film projects “Cabin in the Woods” and “The Avengers” draw us in with that same Whedon magic?

Running continues to grow in popularity, but are all runners happy about that? Holly and Tracy talk about their experiences at races, their training, their gear and yes, their injuries, all while debating the merits of this hobby/sport/fitness regimen.

Swearing promotes group bonding, but does it also rob you of your class? We know it’s not for best princess behavior, but when is cursing appropriate? Can Tracy and Holly keep it clean while weighing the merits of “bad” words? (The answer is yes.)

One’s a wisecracking rabbit and the other’s a giggling mouse. Both have devoted fans. How did these famous animated rodents get their starts and nestle into their niches, and why has only one reached juggernaut status?

She’s quirky, nutty and totally unfettered. She shows brooding screen heroes that life is full of fun and wonder. She’s Manic Pixie Dream Girl, and her roots as a cinema archetype go back further than you probably suspect.

It’s exciting, it’s a rite of passage, it’s expensive and often a letdown. Few people look back on their proms and think “That was one of the greatest nights of my life!” Tracy and Holly relay memories of their proms and the origins of this tradition.

Psychologists agree: Guilt is actually good for you. So go ahead and indulge your love of “Weekend at Bernie’s” and other low-brow entertainment. Tracy and Holly will get you started by confessing what trashy things they love.

It’s natural to want to shield kids from evil and darkness, but could there be a place for such themes in media aimed at young people? Tracy and Holly have researched the value of violence, and noticed how much of it there is in well-loved children’s entertainment.

In the U.S., we tend to think of St. Patrick’s Day as a green-tinted street party with loads of drinking and leprechauns. But what are the holiday’s real roots, and how did they get lost in a sea of plastic pots of gold and green beer?