Funniest dog video

I first saw this a year ago and watched it nearly 10 times in a row, laughing hysterically each time. I decided to look it up, knowing I wouldn't laugh as much -- after all, I know what's coming.

Wrong!

I just sat here trying to hold the laughter in at work.

The first time I watched, I complained to a friend about how that sweetheart dog to the right wasn't getting ice cream. And then....