JAR - Bizarre. Is there anything more to the story than that? I mean, do you even know these people? Family friends? If not, it seems silly to get involved based on this!
I mean - "Yes your honor, these people have been married x years and I don't know them at all really, but one time, for about 5 seconds in the heat of an athletic competition we had a disagreement and he was an a$$."
Judge - "Ok good, based on that testimony it cinches the case, she gets the house, car, boat, custody and 1/2 the money!"
I'd stay out of it unless your really acquaintances and want to take sides. JMO