Curdled shots are a unique set of drinks that mix acidic liquor and cream – usually cream-based spirits like Irish cream – for a gross-out effect. When cooking, this usually happens because it was overheated or because something acidic, like fruit juice, vinegar, or alcohol was mixed in too quickly or in too high an amount, and although this isn't unsafe to consume, it can be very unpleasant. Drinks like the Cement Mixer (Baileys and lime juice), the Brain Hemorrhage (Baileys, peach schnapps, and grenadine), and the somewhat offensively named Irish Car Bomb (a twist on a boiler maker with Baileys, Jameson, and Guinness) all curdle upon mixing, making part of the "appeal" the unpleasant texture, nauseating look, or ticking clock to drink it all as quickly as possible, respectively. Cream curdles when the fat, water, and proteins which make it up separate and regroup, causing it to take on a distinct clumpy texture and a more sour taste. This delicate balance can be easily thrown off though when the pre-mixed concoction is dumped into a cold beer or mixed with citrus, causing the smooth dessert liqueur to go instantly chunky. When you go out and deliberately drink something that is known to be nauseating, it probably increases your odds of getting sick out on the dance floor or at the dinner table.