Dear Abby: I need to let off some steam, because the more I think about an incident that happened last summer, the madder I get.

My sister and I take turns (a few days at a time) caring for our 91-year-old mother, who has Alzheimer's and can't be left alone.

My family lives 60 miles from my mother, so before returning to my home for the Fourth of July, I took flowers to the family cemetery, which is close to Mom's house. It's something I do every year, and the tradition holds great meaning for me.