Reading Betty Pear's Obituary

Alright, listen up, knucklehead. So, this joke is about someone reading an obituary, which is like a death announcement. They read about Betty Pear and their *first* thought isn't sadness or respect, but 'Thank God for Alzheimer's!' Now, you might be scratching your simple head asking 'Why?' Well, you big dummy, Alzheimer's is a disease that makes people lose their memory. The joke is implying that Betty Pear must have been such a terrible person, or did such awful things, that the reader is *relieved* she had Alzheimer's because it means either she forgot how awful she was, or perhaps the reader hopes others forgot about her or what she did. It's dark, yeah, but that's the 'humor' here, you dense cabbage.