The Orthodox community over by Emory University has set up an outdoor demarcation line around their neighborhood (wish I could remember the proper term for it) to allow people to travel within the neighborhood on the Sabbath. Basically they strung cables under the telephone wires. They paid for it, it doesn't interfere with the telephones or traffic, it's their money.
I suppose some may file it under "Quaint Religious Customs", but so what? I've got plenty of quaint religious customs too, but so long as it's my chalk and my front door that has 20 C+M+B 07 chalked over it, whose business is it but mine?
Forgive my ignorance, but what does that mean?
What IS that? One german custom I never figured out, the chalk marks.