At my stag party, my friends had a drink made called an eye of newt. It was Tequila, dark rum, chartreuse (light green colour), and Kailua- one ounce of each, layered in a tumbler. The "eye" is a raw egg cracked on top of the 4 layers. The bartender pushes strings of the white down through the layers, which gives the drink a really cool look (unless it is before you to drink....) Several of my buddies said that you have to break the yolk in your mouth or you'll puke, others said that if you don't just pound the whole thing back you'll puke - and I was thinking, I'm going to puke regardless..... Anyway, drank it all in one go, and it was horrible, hideous and nasty, but didn't puke.... well, until later...