The ending (Spoiler alert! Spoiler Alert!)

I for one was glad the dog wasn't getting BBQ'd!

I was like, "Oh, no! This ain't gonna end up good."

The ending was funny, thank God, but i would have put a twist on it:

Since the dog already didn't want to mate with two female dogs that were in heat, i would have ended it the same way, but the camera would have went back to the main character - after he initially saw his dog having sex with the other dog and was smiling - and then the camera would have shown his eyes looking downward, then frowning. Why?

I would have made his dog humping a male dog, not a female. It would have made sense to end it that way since most male dogs go crazy for even the scent of another dog in heat and his dog was disinterested both times. Yes, his dog would have been gay. (Not that there's anything wrong with that!)