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: this happened a few years ago. i was casually dating this girl from school. we had gone out on a few dates, and things  were going great. she had disclosed to me she was on a number of medications for various mental things, mainly depression and epilepsy, but she also mentioned she took ambien to sleep, which i didn't think much of cause it didn't affect her daily life much. 

anyway, one night i get a text from her asking if i wanted to come over, followed by a very nice photo of her in her underwear. being a horny 21 year old, i ran right over, and with few words being exchanged, we did what college kids do after a booty call. we both fell asleep right after.

i was awoken the next morning by her screaming and freaking out because she had no idea what i was doing there. i told her we had had sex, and she immediately starts accusing me of raping her. i panic and show her the texts she sent me. when she saw the timestamps, she calmed down and realized what had happened. apparently, people on ambien can still function pretty well while mentally asleep, and she had gone to bed, woken up, and while asleep, proceeded to sleep sext me. 

we both had a laugh about it when we figured it out, as she admitted she had wanted to have sex, but needless to say that relationship didn't last much longer.

TIFU by not knowing what Ambien does.