Although both make a living by expertly mixing an array of compounds, bartenders differentiate themselves from chemists in uniform, workplace, and tolerance for workplace line dancing. Shimmy, shake, and stir this sippable science with today's Groupon: for $50, you get an introduction to bartending class at the International School of Professional Bartending (a $100 value).

Boasting 31 years of experience in libation education, the International School of Professional Bartending breeds well-versed mixologists thanks to its experienced staff and true-to-life bar classroom. The path to potent professionalism begins with this four-hour introductory lesson, which covers the tending basics, including use of bar tools, measuring by eye, and practicing and perfecting free pours.

Each class (which is typically 25% lecture, 75% practical) takes place amid the school's fully equipped practice bar, complete with beers on tap, stainless-steel sinks, and soda guns––helpful in demonstrating the proper way to break up a rumble between gangs of dancing dentists.

After their four hours of introduction, students intoxicated by the art of intoxication can also opt to use the value of the Groupon toward the full-fledged 40-hour course ($795), mastering everything from shooters and sours to margaritas and maraschinos, honing their speed and efficiency until they morph into fully fermented mix masters.