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 $30, you get 30 days of unlimited boxing-based group fitness training at No Excuse Fitness and Training, located on King William Street in Hamilton (a $175 value, including HST). The program also includes gym access and a nutrition plan.

Posses of up to seven body-buffers of all ages and experience levels gather in No Excuse Fitness and Training's bright, open studio for more than 20 bicep-chiseling group workouts each week. Spar with sneaky shadows or smack a smug bag during a strenuous 12-round boxing-intervals workout that can burn up to a thousand calories, the equivalent of one stick of deep-fried butter, in a single session. The gym's staff of professional and amateur pugilists, including owner and seasoned boxer Ryan Rannelli, teach aspiring fighters during a technical boxing session that covers punches, footwork, and evasive techniques for outsmarting turnstiles. A grab bag of constantly changing Challenge of the Day workouts diversifies the muscle-maxing activity mix. Clients can also drop in on their own for independent iron pumping in the fully outfitted gym or receive a dose of nutrition and lifestyle advice from a trainer as a part of the Fitness and Lifestyle Improvement Program (FLIP).

The downtown location enables quick lunchtime drop-ins, and off-street parking ensures access for those from far-flung locales. After a workout, showers and a complimentary towel service can mop up the glory sweat of clients' exertion. See the schedule to pick from a calendar of upcoming sessions, or gather a crew of punch-happy compatriots and arrange your own.