My parents used to run a sort of drug rehabilitation thing out in the country. Small time, just one guest at a time who was accommodated in the guest house and they got compensated by some organization.

Anyway, this one guest had a little trouble adapting, he had lived in the city his whole life, and as such he had always had the city light in his life. So when the night came and it got dark, no lampposts within a mile's distance, he freaked out. He couldn't stand it. So the first night, he took their car and went back towards Stockholm, which is a 300 mile drive. The police found the car by the roadside with a dead engine a way south from Stockholm.