The host must lay in ice, ice, and more ice
You’d be surprised how much ice is called for to make your average backyard party a success. You’d also be surprised at how important ice is to your beverage game. Finally, you—or more likely that person in your group who violates Rule No. 1—may be surprised at how fast ice, you know, melts, in the summer sun. All of which means: Load up on the frozen water. Then get more.
Hamburger meat, if served, must contain a minimum of 20% fat
Listen, fat equals flavor. Fat-free burgers are taste-free burgers, and they dry out too easily. In fact, you should go with a 70-30 lean-to-fat ratio if you can.
The difference between “grilling” and “barbecue” may not be clarified by anyone
This is like the “No 'Stairway to Heaven'” rule in a guitar store. We all know the difference between grilling and barbecue by now, and if you’re gonna come with the little-known facts, then come correct, like with these ones, or this one: If you go to Wofford College in South Carolina you can take a course in barbecue. It’s true. Or, roll out the best totally-not-true explanation for the origin of the term “barbecue”: It comes from a 1982 edition of TarHeel magazine, which claimed that a 19th century proprietor of a combination whiskey bar, beer lounge, pool hall, and pork emporium advertised his joint as “Bar-Beer-Cue-Pig.”