(Delete/lock if this is too similar a topic to the Pokeradar thread.)
Well, title says all. What is the lowest chain you've had while encountering a shiny Pokemon using the Pokeradar?
Me personally, I had an encounter with a Shiny Staravia in the Trophy Garden during a chain of only 9.
I'm not sure if a 0 chain (no Pokemon) is possible. I assume it is, but it'd be the same chance of finding a random shiny in the wild.