Dad 78 has MCI - no dementia. Mum 75 with moderate Alheimers. She also has Chronic Lymphocytic Leukemia so feels the cold and feels the heat. Mum & Dad live behind us. Dad is lacking in the sense department when it comes to Mums safety, but two things have happened now, which really makes me wonder can MCI cause him to be so oblivious? A few weeks back I suspected Mum had a urinary infection. I made an appt to take her to the doctors, but had to pop out for an hour with my daughter. My husband was here. I came home to find that Dad had let Mum walk down the shops to get milk. Its a 5mn walk. They didn't need milk.. My husband would have stopped her otherwise if he had seen her. She was perspiring heavily, temp of 37d, looked shocking, and about to keel over. Took her to the doctors, and sure enough running a temperature and her blood pressure was up, and a urinary infection, and mildy dehydrated. She could have walked down the dairy, collapsed or worse. I asked Dad why he didn't go, walk with Mum, or even ask my husbnad if we could spare some more milk. He shrugged his shoulders. We are having a heat wave here at the moment in New Zealand 28-30d. Mum came over to my house not half an hour ago, fit to pass out. Bright red face, sweating profusely. I took her back immediately, got her changed into shorts from trousers, took her slippers off, got her to sit down, shut their curtains to keep the light & heat out, in front of the fan, with a cold drink and a cold wet cloth for her face. Dad had the doors shut, no fan on. He says he doesn't feel the heat. Thats fine but he could still turn the fan on for Mum. Am I expecting too much from him?