DEAR ANNIE: My sister “Emily” and I were planning a joint celebration for our parents’ 40th wedding anniversary, but we’ve hit a snag. Emily wants to host a large party with all of our extended family and friends, but I think that a more intimate gathering would be more special and less stressful for our parents. They are both pretty reserved, and I just know they would prefer something smaller. Every time I try to discuss this with Emily, it ends in an argument and she accuses me of not wanting to do something “all-out” for our parents. Every time I try to explain my reasoning to her, it does…