Any physical affection in household=suddenly, dog!
My father used to have a dog named Sequoia, a German shepherd/St Bernard mix who probably weighed 180lb/82kg.
He would tell the story of how he and my stepmother were starting up a tickle-fest on the couch, which attracted Sequoia, who then got all confused because the two people he belongs to are "fighting," and his solution to this was to jump up and lay down on top of both of them. Well this quickly changed the mood to "Oh God we can't breathe" and so they pushed him off--right onto the glass-topped coffee table, which of course shattered under his weight.
It was an eventful evening.