Yeah, I had to tell my dad to stop driving, after he'd been diagnosed with alzheimer's. Fortunately, nobody got hurt--he just got lost a couple of times and the police called me to come and bring him home. I knew his memory was impaired but didn't realize that his sense of direction had been affected, which probably means that other faculties had been affected too.

He fought me some, but not as much as I expected. Soon after that, we had a major hurricane and he had to go live with my brother, so it wasn't as big an issue as it could've been.

I like the idea of regular re-tests for drivers. Might've helped me recognize my dad's impairment sooner.