Some businesses offer a military discount as a way of thanking people for putting their lives on the line to serve our country by giving them a discounted price on movie tickets or other goods and services. It's not nearly enough but, hey, it's something. In many cases, military discounts also extend to immediate families (usually spouses and dependent kids up to age 18). But should you be entitled to a military discount if you're an adult who is related to a veteran through marriage? One guy thought so. And he did not take well to being denied this privilege.