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: today i was walking with a chick to her class who i am in interested in. after walking with her to class i decided to ask her for her phone number since there were only 2 days of class left and wanted to get to know her better.

i pulled out the phone dialer and she put her digits in. i told her bye and left to my next class. when i arrived to the next class i opened my phone to save the number but the number was gone since the phone locked by itself. 

now i have to awkwardly ask her again in the last day of class. 

edit: i asked her again and she gave me the number again. i texted her and she texted back. we're so gonna date now haha.

TIFU by letting my phone lock itself