I'm 20 and i live with my 87 year old grandfather. He has dementia but is otherwise extremely healthy and active. He is always talking walks around the block and to and from where i work, about 4 blocks away. The one of the problems i have is when i'm not home he is contently going into the fridge. I don't mind him going in there for a snack but he opens it about every 10 mins and by the time i come home from work its only 60°F in there. I'm contently having to throw things out. I've told him 1000 times but he just cant remember or docent relies what he is doing. I tried putting a note on the fridge but he takes them off and puts them in front of his calendar where he thinks he will see it. I'm not really sure what to do about this other than put a chain and a lock around the fridge handles. Any experience or ideas?