Krusty Burger was founded by Krusty the Clown, star of The Krusty the
Clown Show. During the Summer of 1984, Krusty Burger launched a
promotion that gave free burgers to those who pick Olympic Events won
by the United States on their game cards. The games involved in the
promotion were games that were traditionally won by the Russians.
Unfortunately for Krusty, the Russians boycott the Olympics, and the
United States won almost every event, costing him $44 million. He then
vows on camera to spit on every fiftieth burger as a result of his
loss (with Homer in particular "liking those odds" when hearing
this).