Huh?

A fellow always stopped at the pretzel stand outside his workplace, place $2 on the counter, but didn't take a pretzel. One day, the stand operator said, "I've got something I'd like to say to you."
"Oh, I know," the fellow says, "You want to know why I put down $2 every day and don't take a pretzel, don't you?"
"No," said the vendor, "I just wanted to tell you they've gone up to $2.50."

Now, can anyone tell me why once we've experienced a blessing for awhile, we begin to assume it's ours by right, and we get upset if it stops. We may never have asked for it. We didn't earn it. But we just ASSUME it will keep on and on. Somewhere it changes from a gift for which we're thankful, and turns into an obligation which we expect to be fulfilled.

How marvelous is God's patience with us, even when we're ungrateful!