A man came into a restaurant and warned the waiter, “I like bread.  I don’t care about the rest of the meal, but I have to have lots of bread. The waiter left and returned with an appetizer and two slices of bread.

The customer gulped it all down, so the waiter served four slices of bread with the salad.  The customer ate it all.  The waiter served eight slices of bread with the soup.  Once again, all devoured.  The waiter found a foot long loaf of bread , sliced it lengthwise and served it with the main course.

The customer asks, “What’s with going back to two slices?”