At our work we sometimes have unofficial rewards for reaching goals (e.g., as a team if we reach X number of bugs we get doughnuts). I joke with my co-workers

At our work we sometimes have unofficial rewards for reaching goals (e.g., as a team if we reach X number of bugs we get doughnuts). I joke with my co-workers that we should immediately stop finding bugs once we reach X, since anything further than that is wasted effort (and sets the bar higher when the next doughnut offer comes around).