For all:
Sent this to Dan via email, but having worked in a SService agency dealing with older adults, I learned that a UTI will cause older folks (?) to go loopy overnight...act like they have dementia.
Dan knows his dad has a UTI so that is likely the reason for "not knowing" his kids.
All others, if an aging parent suddenly starts to act like they have dementia, demand a UTI BLOOD test culture, not a urinalysis as the UTI often doesn't show in the urine test...
Too many older Americans get stuck in a dementia ward when a UTI is the culprit. FWIW...