Sometimes karma isn't instant, but it's quick enough. Today's example from the news -- black dad takes his year-old son to a sporting goods store to get him his first basketball. White manager follows them out of the store and accuses the dad of stealing the basketball. Cops are called, and they let the guy go after he shows them his receipt. Black dad then takes the ball back inside the store and gets his money back.
You might think that the karma is balanced there, but it's not. Next twist of the universe - white manager gets fired.