"Ducking" is a prison slang term for a technique through which prisoners modify the behavior of correctional officers and other prison staff members using manipulation and coercion. The prison slang term for a prison staff member that has been manipulated is a "duck". It is thought that and , employees of the Clinton Correctional Facility in Dannemora, New York, were perhaps ducked by Richard Matt and David Sweat in the 2015 Clinton Correctional Facility escape. The concept of ducking is also discussed in the 2015 film Heartlock.