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 i am all excited for back to the future day... i figure i would do something clever so i change all the ringtones in our small office to various bttf audio snips. i get in early and run the change on the phone system.

since i am the first one in and my office is near the entrance i figure i'd ask a few people what the day is. first person goes great, i show them their phone, they are happy. the second person is the ceo...

ceo: hey kd5vmo, morning!

kd5vmo: hey ceo, guess what the date is!

ceo: ummm... october... something...

kd5vmo: october 21st! back to the future day!

ceo: oh yea, the day my dad died! thanks kd5vmo...

kd5vmo: ... uh... sorry... uhh... i didn't know...

ceo: haha, this must be awkward for you

kd5vmo: ... yeah, sorry about that

ceo: yeah, its ok, its back to the future day...

so i quickly change back his phone while thinking i just ruined his day. then as more people walk in he makes a few jokes about it and i get a light roasting a from my coworkers.

turns out he is a good sport about it, said it made his day, reminded him to call his mom and brought back some good memories. plus he said the look on my face was priceless.

TIFU by making my CEO guess todays date