Don't look at me funny, you know the rule. You see a dead guy floating in some water, you get a stick and poke him. That's how it is in nature. You have to gauge a few things. First, to see if he is completely dead. Second, to see if he's going to pop like a balloon when you poke him. Third, that's how you wake up zombies. Those guys don't look like they brought there stick, but they did bring a rope. That should help.