The Numerical

This happend with me :
I was studying..like engrossed in a long numerical... my bbm ping..but i didnt care..
Had a chocolate bar with me eating it occasionally...as soon as my work finished i just cross checked the answer..
it was wrong... but i was calm and reached to my chocolate.....it was empty and i was like
B****C***D... chocolate kaise khatam ho sakti hai??