The sweet smell of yeast attracts slugs to beer like moths to a flame. (And often it’s in a Solo cup that they meet their boozy demise.) “A lot of slug species feed on decaying plant material,” says Ian Bedford, head of the John Innes Centre’s Entomology Facility in the U.K. Beer resembles overripe fruits, which burst with naturally fermenting yeasts that slugs can’t resist.
In 1987, Corona sales plummeted when a rumor spread that their workers were peeing in their beer. The company traced its origins back to Heineken, whom Corona sued for $3 million in damages, but their reputation still suffered and their product was referred to as “Mexican piss water” for years.