You know how when some people drink, they fall in love with everyone and become super affectionate? There are also the quiet, pensive drunks who become very inward thinking, pondering the state of the world. And then there are the mean drunks. Nobody likes a mean drunk, because they say and do cruel things. Researchers have recently found that alcohol can act as an igniter to prejudice; when people drink, they are more likely to say and do racist and homophobic things. Now that's a mean drunk.