How big of a sin is it that I got bored and put my wife's expensive makeup on our Saint Bernard?

[Le Morte ď Jack B]

Beer may or may not have played a part in my putting makeup on our Saint Bernard, Butterfly, and then dressing Butterfly in my wife's dress, taking her picture, scanning it into the computer, and adding text that says, "Some days my wife can be a real b***h", and then posting it on Facebook. As it is, my wife sort of forced me to do it by yelling at me to put on a shirt when her sister came to dinner tonight.