As in many other jurisdictions, collaboration with justice is rewarded with sentence mitigation or even total exemption from punishment in the German criminal justice system. (convention2.allacademic.com)
Some dogs are taught to be aggressive by being rewarded for exhibiting these types of behaviors. (dog-health-guide.org)
And it can be challenging to stay motivated and on top of things if there's no reward in sight. (businessinsider.com)