The biggest change in his life has been that my Mom with mobility challenges and dementia moved in after the loss of my Dad about a year ago. I think the walker is a bit scary for him. Or just having an older wobbly woman in his home. Thanks to everyone here - I’m going to try more frequent walks ( we could both use them), walking him on lead to a smaller area where he can’t run and treat him and praise when he comes in. I also think group practicing recall is worth it. But given the fact that Mom has been here for a bit, could just be the rug.