Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: i was in the mall this morning, buying a medicine for so. on my way to the car, the security guard asked to have a phone call. i told him i didn't have my phone with me, and continue to the car. when i've reached the car, i've decided to grab my phone, and let the security guard to have his call.

he told me the number, i dialed it, and waited there. the guard phone somebody about second closet and outdoor storage (i don't know why it was so important) and he appeared stressed whenever somebody came down the stairs.

naturally, his supervisor has arrived while on on the phone,  and surprisingly the guard didn't end the call. the super asked him (in angry tone) why is he on the phone, and why does he have friend on the post) i took the phone and shyly walked off, knowing that by being kind to a stranger i might have caused him to loose his job.

TIFU by going the extran mile when a stranger asked me for a favour.