This is a spin off from a comment Zed made in http://www.alzheimers.org.uk/talkingpoint/discuss/showthread.php?goto=newpost&t=2737 This comment got me thinking, and wondering if Dad is different to others in the characteristics of his early onset dementia. In the 20 years leading up to Dad's diagnosis, he became increasingly obsessive compulsive. At the time we just put it down to Dad being Dad, he had to do his daily routine in the exact same order everyday and god forbid if anyone messed that up, had to have his cup of tea exactly right at the same times everyday, had to stir it in the same direction and tap his cup twice once finished stirring. If on an airplane he always had to pull out a magazine from the seat in front during take off even if he didn't read it. He could be decidely vicious with his words if anyone did something that interrupted his routine, it obviously upset him badly to have his routine spoilt. These days when we look back on it all and realise how we were all nervous wrecks trying to live by Dad's illogical rules for how things must be done we suspect that all of this behaviour was perhaps a lead up to the disease. I'd be interested to know if anyone else has experienced this kind of behaviour in their loved one prior to a dementia diagnosis. Perhaps it was his way with coping with early damage to his brain, a way to feel in control and a way to make life easier for his failing brain to cope??