Minecraft wiki entry for Things_not_to_do, associated text: Yet another option is to trap an enderman in a boat before attacking it; this makes it unable to move or teleport, and it can only hit you if you're right up against it. This rule applies to almost all mobs, however, results may vary depending on how the mob in question attacks: It's basically useless to trap a skeleton, but you can stop a creeper or baby zombie in its tracks. Whatever you do, don't get in the boat.