Detailed Instructions: 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.
Q: Text: i was at work cutting limes and chatting to an acquaintance sat on the other side of the bar. the conversation moved onto ideas for halloween costumes and as i was not going to be present for my bar's up and coming halloween party i jokingly said i was going to dress up as flight mh370 and leave everyone wondering where i was (thanks reddit) 

turns out she lost her cousin in the second malaysian plane incident along with the cousins kids. this is definitely the most awkward situation i've ever experienced in my life, i hung my head and cut limes in shame until she left.
A:
TIFU by joking about an inappropriate halloween costume.