Your Activity is Recorded Automatically (Srila Prabhupada)

"Because you are killing one ant unconsciously while walking, your name is noted. Your ticket is immediately there: "Oh, you have killed so many ants." The law is so nice. Prakṛteḥ kriyamāṇāni guṇaiḥ karmāṇi [Bg. 3.27]. Automatically it is recorded, automatically, and you have to suffer.

So then what to do? If the situation is like that, how to save? Therefore Kṛṣṇa says, yajñārthe karmaṇānyatra karma-bandhanaḥ. If you dedicate your life for yajña... Yajña means for Viṣṇu. Yajñārthe karma means Yajña-puruṣa is Viṣṇu. If you work for Viṣṇu, then you are safe. Otherwise you are becoming complicated. Yajñārthe. Kṛṣṇa says yajñārthe karma anyatra karma-bandhanaḥ. If you are going to office to earn your bread, very hurriedly to attend the office, and you are killing so many ants, you are becoming entangled. 

You think, "I am going to office to do my duty very hurriedly," but you are becoming implicated. But if you go out for receiving some help for worshiping Viṣṇu, then you are free. Then you are free. Exactly like that: soldier who is fighting in the battlefield and killing so many men and he is given gold medal, "Oh, you have killed so many. So many lives you have killed of the opposite party, enemy. You take this Victoria Cross." He becomes recognized by the government. The same man, when he comes home, if he kills somebody for his sense gratification, he will be hanged. The same man."

Śrīmad-Bhāgavatam 6.2.16
—
Vṛndāvana, September 19, 1975