[rexxfan]

My neighbor has grown increasingly confused and forgetful over the past year or two and has somehow become convinced that he owns my house. He is constantly wandering around my property, ringing the doorbell, entering my lanai and once actually managed to get into my house while I was away. I think he somehow got through the lock on my sliding door. He is a former LEO so probably knows how to do that. I've since put lock bars in the tracks of the sliders and while I am less worried about him getting in again I'm still a bit nervous about the situation. I can't see this ending well.

My question is what advice would you put forth to help me deal with this? I don't know anything about his medical situation but it seems to me that he maybe has some form of dementia and I have no experience dealing with that. I don't want to do anything that will make things worse but clearly this can't go on and I am going to have to do something. Help?