[riffraff]

OT: the urban legend about tire shops putting nails in the neighborhoods' is very widespread. I have heard about it in at least three countries, and I recall my school teacher telling me about it in '91.

I sort of expect it wouldn't be an effective practice anywhere.

[huhtenberg]

It's an urban legend until you actually catch a nail and there is a tire shop conveniently located not 100 yards away. True story, Indian reservation in BC, Canada. Who cares if it's a tacky business model or an urban legend. It works.