When you have to do the same stuff over and over and over, something in the inner core of your being just gets sick of it, rolls over, and kicks the bucket. Observe:

repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
repetition
God in heaven, I just can't fucking stand it anymore! (falls over, dies)