You're at someone else's home and their 5-year-old son, who is known to be quite rowdy, is playing with their dog, who is also known to be quite rowdy, having never been properly trained. The boy begins to pull on the dogs ears, from behind, and then tackles the dog, again from behind, and rolls with the dog over & over across the floor. Would you say something to the boy? Would it matter if his mother is in the room and she didn't say anything? Would it matter if they were family, does that make it more important to say something, or more important to stay quiet?