My father has become very argumentative and will not listen to my mother when she gives him simple tasks, for example it's time to use the restroom. He has started taking off and walking to nearby malls, buying things that they don't need. The last couple of times he has gone on one of his walks he has ended up in emergency due to falling and hitting his head.
My mother has reached her limit. They live in Canada and have applied for assistance in the way of day care, but it could take 6 months to a year for my father to get in.