So many people don’t understand dementia and I have to remember I only understand because I’ve lived in the world of dementia almost a decade.  But with dementia, the ability to verbally process is GREATLY diminished.  You need to talk in calm, short sentences and give space for the processing to happen.  It’s slower.  If you talk a lot of words and do so quickly expecting results, it’s very stressful for those with dementia.  Oh, how I wish others understood this.