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: slow evening at the restaurant i work at. was joking with my manager's son and coworker. table of three said they were going out for a quick smoke. manager's son simultaneously lobbed an insult my way. i went to give a thumbs up to the table. 

it came out as the middle finger instead.

whoops.

TIFU by mixing up my hand gestures whilst working.