just call the orderly's his mind is clearly gone

What I really what to know is what is going on with the pancakes?

Get a pit bull next time. If Grandpa kicks that dog, he'll lose his pancakes.

Call DHS and report for yourself

He doesn't have to be. Call CPS, and tell them you no longer feel safe. If you can film his behavior to get some evidence, it would help.

I hate that you’re in that kinda environment and that to many people think you deserve it.

No he won’t, since he is clearly too insane to function.

OP, I know this sounds crazy, but sit down and have a talk with him, just about life or how the day is going. Not only is it a pandemic, but there is an election going on. lot of reasons to fear the unknown. older people feel more scared, they just have no idea to express that. all their life they've been taught to not show that type of vulnerability. have some tea or a hamburger and ask about stuff, anything, good ole days, etc

Is this normal for him or is it out of character? If it's normal, sorry for you but if it's out of character he needs to see a doctor as there may be something really wrong. A friend's mother went through a change of personality, she had been a caring mother but started getting mean. Even she could see it and took herself to get checked out. They found a tumour. A series of mini strokes changed my Grandfather's behaviour.

Call the cops. Explain your grandfather seems to not be aware of reality and he's abusing animals. They should sort things out from there, and they won't hesitate to get you out of the way since he 'seems crazy'.