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 morning i was reading the ama with jim gaffigan here (http://www.reddit.com/r/iama/comments/3627lf/im_male_model_jim_gaffigan_ama/) and for about 30 minutes i thought i was reading an ama by zach galifianakis.  i’m really bad at knowing actors / actresses and other famous people.  recently i watched zach’s special on netflix which probably explains my man crush on him.  however, i am also familiar with jg’s stand up act and i’m quite surprised that i did not figure this out the mistaken identity when hot pocket references were being tossed around.  i couldn't remember zg doing any hot pocket jokes and almost decided to google it, but rather than find out about my mistake sooner, i decided to keep reading picturing zach’s characters saying jg’s comments.  at one point i wanted to ask a question that would have focused on zach’s career.  after i had read most of the comments i had an epiphany that jg is jg.  so then i decided to post my fu in the comments section only to have it rejected by a bot because it wasn’t a question.

tl; dr: i mixed up comedian names in my head while reading an ama.

TIFU by mistaking Jim Gaffigan for Zach Galifianakis while reading an AMA.