Fattori and coworkers (2012) discovered neurons called cells; these responded not only when a monkey was preparing to grasp a specific object, but also when but also when the monkey viewed that specific object.

The answer is visuomotor grip cells. An example of this type of neuron which Fattori calls is visuomotor grip cells in which it is a neuron that initially responds when the monkey sees a specific object and then also responds as the monkey is forming its hand to grasp the same object. This type of neuron is therefore involved in both perceptions identifying the object by seeing and action reaching for the object and gripping it with the hand. 

He was probably very upset and disapointed and mad. all at once. so he probably wanted to show his disapointment, angryness, and depression. he didn't think of the affects due to the minor issue thst he has gone through. sorry if it doesn't . but i am trynna people.