Friday night. Meg and I were having dinner with Mom.
Grandma calls. She thinks Grandpa is lost.

Last year, when Grandpa started exhibiting signs of dementia and Grandma started having a lot of anxiety about not knowing when and where he was, my dad installed a GPS tracker in his car. It's been helpful (my grandma can look online and know when he's driving home from his boat, for example) but, on Friday night, that damn GPS tracker and its $20/month subscription fee really proved its worth.
So, Grandpa was driving home from his boat, which he stores somewhere an hour away. He got all the way home -- like, within a mile -- and he got lost. He drove past his subdivision and got very turned around.
After seeing that he had been driving around for more than an hour, my grandma called my mom. Crying.

And Mom and I got in the car to find him.
Meg was at home, logged in to the GPS program, updating us on where he was. Go north. Turn right. He's at this intersection.
I drove. Mom looked for his car. We live in the suburbs. There aren't many streetlights. It was dark.
At one point, after almost an hour, we finally caught up with him. Oddly, it was at the intersection where my mom and dad's house is. As soon as I stopped at the light, my mom jumped out of my car to knock on his window.
He turned right (away from her house, away from his house) and drove away before she could get to his car.
Determined not to lose Grandpa again, I abandoned my mother on the side of the road. (200 yards from her house, if that makes you feel and better.)
(Meg immediately left her post at the computer and went to pick Mom up and follow me, following Grandpa.)
I tailgated Grandpa. It probably made him nervous. I was just trying not to lose him.
He finally pulled onto a side street. I followed him. I threw my car into park and jumped out and knocked on his window.
"Grandpa! Hey! I saw you driving!" I pretended like it was just a coincidence. I didn't mention the GPS. He doesn't know the GPS.
"I'm just trying to find the house," Grandpa said.
"It's so dark outside," I told him. "Why don't you turn your car around? My mom will be here soon."
Meg and Mom heard everything. I had them on speaker. The phone was still in my hand. I didn't even realize it.
Grandpa turned around and Meg dropped off Mom. She got in the car with Grandpa. They followed me to Grandma and Grandpa's house. Mom said he didn't have any idea where he was. She kept pointing out landmarks. He was still confused. He missed his subdivision. (Again.) Drove right past (again), even though my mom told him to turn left. Even though he's been living there for 55 years.
We got him back home. Grandma was crying. He really needed to pee.
The whole thing was awful.
He was lost for 2.5 hours.
We can't tell my aunt.
I'm absolutely sick about the whole thing.