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: so this happened a few years ago, but my wife and i were talking about it the other day and i am still taking grief for it. in order to set the stage correctly, it has to be known that my wife has no relationship with her biological father as he left when she was less than 2 years old. the story starts in december when in her late 20s that my wife got curious about her biological father, so i start doing some internet sleuthing only knowing a few basic facts about her biological father.  the details that i know are his name, his birth date (my wife and i knew what his birthday was because it was the day after her mother's birthday), and the part of the country that he lives (or lived).  other than that, i was flying blind but i wanted to help my wife find her biological father.  after a couple of hours of searching, i was fairly certain that i had found her father, his address and a phone number.

after sitting on this information for a few days, my wife decided that she didn't have anything to lose by contacting her biological father.  she picked up the phone and dialed the number and started taking to the man on the other end of the line.  after a few awkward questions, it was determined that the man was indeed her biological father. they had approximately a 45 minute conversation and my wife had her curiosity satiated.  she had quite a bit of pent up emotions that she was able to get out, and she decided that it wasn't worth pursuing a relationship with her biological father.  it should be mentioned that she does have a step dad with whom she has a great relationship with, but he is no longer her step father in the traditional sense.  he still claims her and she claims him.  she had a complicated family bush.....

after a month or so, january rolls around and we go to the store to get 2 birthday cards because her mom's birthday is in february. one for her mom and the other for her dad.  i was slightly confused by this action but i just went along with it.  she handed me the cards to sign and to mail out the next day. i generally pay/send all the bills out so this isn't out of the ordinary.  i read the cards and sign them, however i was taken aback some by the card for her father.  it said something along the lines of thank you for always being there for me and happy birthday.  i thought this was a little vindictive, but then again i don't know the feelings of being abandoned and i just did what i was asked to do; sign and mail out the cards. 

that night i bring up the fact that the birthday card that she sent to her father was a little harsh. her reaction was confused until i asked her if she read the card that she sent to her father and that it was kind of cold hearted to send a thanks for always being there to the man that abandoned you. she got super mad at me because the card was ment for her step father. it was then that i knew i had fucked up big time. 

in my defense, i did not know that her step dad's birthday was in the same month as her moms birthday and her biological father's.  to be fair as well a month earlier we had tracked her biological father down based partly on his birthday which was the day after her moms birthday, so logically for me that is what i was thinking when she told me to mail the cards out. needles to say, i was in the dog house for quite some time.  she did get a birthday card back from her biological father on her birthday and a 25 dollar gift card, but no other communication has since occurred.

TIFU by mailing a birthday card