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: i'm an american student who's been living in germany for a little over a year now and i love it. i've been dating a german girl and it's left me with a strong desire to be fluent in the language and to learn more about the culture in general.

the fuck up in question occurred last weekend as i was on my way to visit munich. i had used a popular ride sharing website to arrange a car ride with a german guy, let's call him wilhelm. we met on the determined morning and it was all going well. wilhelm was in his late 50's, and was wearing a tucked-in collared shirt and dad jeans. he had also brought his young granddaughter (8ish?) for the ride. 

he was definitely a morning person. within 5 minutes of the drive, he was in full-on smalltalk mode. that's ok with me though; i like getting to know people and this was going to be a 4 hour drive after all- it would be good to have some rapport during the journey. we covered a wide wide array of topics- why we were heading to munich, soccer teams, cars, ect. and during which time he seems to like me and offers to drop me off at my hotel even though it is somewhat out of the way for him. wilhelm is the man! 

the conversation eventually dies down so i decide to do a bit of reading. i've read harry potter so many times in english that i have it pretty much memorized, so i borrowed the series in german (from my girlfriend) which has been really helpful for me. now normally i'm not a bookmark kind of guy. i feel like bending the pages is part of the process of discovering a book, but my girlfriend isn't in that camp so i decided to respect her wishes had been using a postcard as a bookmark. the thing about the postcard is that it was sent to me by a friend, and it was a pretty funny depiction of a hung ass fertility god and a cartoon blonde woman running hungrily towards it yelling "oh my god!" 

i'm on book 4 now, and had been using this since book 1 (der stein der weisen) so the naughtiness of my bookmark wasn't at the forefront of my mind. i opened the book and there it was, gloriously holding my spot in the book. the only thing is that the granddaughter was also a big harry potter fan too, and excitedly peered over my shoulder when she saw the book (i was in the front seat) to see what part i was at. she was expecting to see something about the triwizard tournament or mad eye moody, but was instead greeted by the sight of a monstrous phallus. i will never forget the look of betrayal and confusion she gave me. or the german death stare of wilhelm. 

needless to say, he did not end up dropping my off at my hotel.

TIFU eroticizing german Harry Potter