In this task, you're given a context, a sentence,  and a character. The sentence describes an action or job of the given character. Also, the context provides more information about the sentence or the character. Your task is to write the character's motivation by doing a specific job, which is given in the sentence. You can use context to find the motivation; however, all the inputs do not provide context. Also, in some inputs, there can be zero motivation; output, 'None' in this case.

Context: Bob went to the barber for a trim before prom. He just needed to shave his hairline in the back to finish up. As he was doing it the barber sneezed. The razor went up the back of Bob's head. 
 Sentence: He had an almost bald streak down the center of his head! 
 Character: Bob
None