Can you still out run her?
For a few more months.
She had a hip replacement the first week in March. She still uses a high end walker outside our home.
According to my DNA, I have the quick twitch/run gene that saved my ancestors. They ran just fast enough to outrun the others, aka slower moving bait.
Are there guns in your house? Is she a good shot? If “yes” remember that it will be difficult to frame it as a gun accident if you are shot in the back 3-4 times.
I recall a French incident wherein a supporter of a nuclear waste dump was found “mysteriously” shot in his house. (treehuggers had threatened him repeatedly). Shot twice in the heart. Uhh, yeah, right. That is how I’d do it. Sure.