Though often regarded as instinct, fighting is actually a skill acquired in the womb, where all babies must defeat their evil selves in order to be born. Further prenatal training with today's Groupon: for $25, you get 10 group boxing training sessions at F2L Training Center, located in Jerome's Gym in Richardson (a $200 value).

The professional trainers at F2L Training Center lead their students through an intense program of calorie-roasting techniques. During workouts, valuable self-defense methods combine with exercise so fighters of all skill levels can train like true boxers. Students will begin each class by stretching, running, and jumping rope in a cardio warm-up session. Afterward, heavy bags will plead for mercy after being pummeled by intense combinations of mighty fists. Bodies then move into a genuine boxing ring, where students fine-tune their form and footwork while padded focus mitts take their best shots, ensuring that trainers' palm readings won't be distorted from damage. The class ends with a varied routine of full-body exercises designed to work and strengthen every muscle.

Five trainers all specializing in different areas of boxing teach students varied techniques that can help make their attacks unpredictable. USA Boxing Olympic Team and World Series of Boxing fighter Tony Mack will be working with students at F2L for a limited time, teaching them the delicate balance between mind, body, and spit bucket. Class sizes run from intimate sessions of five people to full-on pugilistic spectaculars of 20.