Castiel was a good soldier. Uriel was not. These were facts, plain and simple. If angels could feel pride, Castiel would be full of it. He knew Anael favored him above the rest of the garrison and that if there were important orders from Heaven, he would be the one she would choose to fulfill them.

But Castiel also knew that Anael had a soft-spot for Uriel. He was the funniest angel in the garrison by far, and Castiel's strict obedience could not compete with Uriel's sense of humor.

Because Castiel had been made without a sense of humor. It was a manufacturing defect.

In fact, Castiel was so humorless that when his brother Gabriel had requested that he remove the stick from his rectum and "lighten up", he had spent the whole day trying to figure out how a stick had become lodged in his non-corporeal form.

And so, when Uriel had informed him of his latest plans to "screw with the mud-monkeys," Castiel had merely canted his head and replied "If Anael discovers you've spent all the time you were supposed to be seeking revelation coming up with this trite plot, you will be gravelly punished."

But Uriel's eyes lit up. "Don't you wish to see the expressions on their ridiculous faces when they discover a robot head on the moon?"

Castiel had no reply, but later, as he watched Neil Armstrong pick up Uriel's robot head and listened to the human's mind work furiously to try to make sense out of the situation, he had to admit it was a little funny.

But not as funny as the expression on Uriel's face when he found out the humans covered the whole thing up.

Now that was funny.