A guy had told all of his friends about the great steak he'd eaten downtown the day before. A group of them decided to head down and see if was really as large and delicious as he was making it out to be.
The group was seated in the back of the restaurant. After looking over the menu, they ordered and waited, hungrily, for their large, delicious pieces of gigantic steaks.
To their collective disappointment, the waiter brought out some of the smallest steaks they'd ever seen.
"Now see here," the very embarrassed guy said to the waiter. Yesterday when I came down here you served me a BIG, juicy, steak. Today, though, when I have my friends invited, you serve small miniature steaks! What is the meaning of this?"
"Yes, sir," replied the waiter, "yesterday you were sitting by the window."