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: this happened when i was in 6th grade.

i got facebook when i was in sixth grade. i was adding some friends when i came across one of my friends i played lacrosse with. we'll call him nick. i added him as a friend and i saw a friend suggestion, "mya", with the same last name. 

mya's profile picture was a dog. i had no clue who mya was at the time so i just went on with my day. 

i thought mya was a pet because of the profile picture, and the stupid,  ignorant sixth grade mind of mine. 

the next day i had math class with nick. halfway into class i said it. "nick, is mya your dog?"

"no,  dude!  she's my sister!!"

i never heard the end of that for a while.

TIFU by asking if someone was a dog