Killer Java Do you feel like a slug until you have had that first cup of coffee in the morning? With luck, you don't. For a jolt of caffeine is enough to kill a slug, apparently. ... Researchers say they do not know how caffeine kills slugs and snails, but that it appears to work as a neurotoxin, as slugs sprayed directly with caffeine display uncoordinated writhing, kind of like somebody who has had one too many double espressos. Killer Java | 
