An appetizer is like a "before dinner" food to snack on if it takes a long time for the main dish to get there. Therefore, your guest's won't be that hungry when the entree gets there.
Example:...
Appetizers have many good qualities; they give you something to munch on as you wait for your meal to arrive, you get to have a taste of how the food from wherever you're being served is like, and...
Well, the first thing to remember is to give the customer or guest a very, very bad meal. The way to do this is to put plenty of beans and hair into whatever you are making. Once you have done that,...