While it only takes two to tango, it takes an entire dance studio to ward off a gang of square-dancing street toughs. Hone your defense mechanisms with today's Groupon: for $25, you get five social ballroom dance classes at Premier Ballroom Studio in Fremont (up to a $55 value).

Premier Ballroom Studio enlists a cadre of experienced instructors to teach dancers ballroom-bound footwork during classes held every Friday, Saturday, and Sunday evening. Each lesson focuses on a different style of social ballroom dance, with recent classes covering the waltz and cha-cha, West Coast swing, and the Groucho Marx glide. Classes are followed by a social dance party, where students can pair off to practice the steps and learn to sense the proper moment to back-flip off a partner's shoulders. Strut through Premier Ballroom Studio's 8,126-square-foot facility, which is equipped with a 3,240-square-foot main dance floor and a smaller, cozier 750-square-foot studio floor. A state-of-the-art sound and lighting system coaxes out fleet-footed performances.