Death can come in many forms, avocados included. If we can stomach enough of them, many of our daily foods are lethal. Down 30-plus glasses of water in a few hours, for instance, and you’ll do yourself in. (One major cause of MDMA-related deaths: water intoxication caused in part by drug-induced extreme thirst.) Of course, the human stomach usually doesn’t hold much more than 4 cups, but the toxic effects of overindulgence can build up as your intestines move the food along. Here’s how much you’d need to eat of a few foods to flirt with fatality.