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 today.

being that it was the first day in weeks i haven't felt grossly sick, i decided to put a little extra effort into dressing for school.  i put on my cutest underwear, stuffed myself into my tightest pants, and wore a flattering, form-fitting sweater with a tank top underneath.  completing the look with a new pair of boots and my favorite scarf, i left the house feeling ready to take on the world, including the exam i had in my upcoming trigonometry class.  

apparently, however, wearing tight clothes is a skill that one must practice regularly in order to maintain a mastery of.  i learned this the hard way, today,  when i got up during the exam to clarify something with my professor.  as i went to sit back down, i realized my pants were not adjusting well to the position i was about to assume, and my tank top was starting to slip up. this not only meant i was about to expose my thong to the two rows of people behind me, but a significant portion of my crack was coming out with with it.  the chairs are the type that have a gap between the seat and backrest, so simply sitting down would not have saved me embarrassment.  i had to act quickly.  

the rest was a bit of a blur, it happened so fast. in a last ditch effort to tug my pants up, i managed to miss them entirely catching my thong and giving myself the mother of ass-splitting wedgies, the shock of which caused me to jump back out of my chair, almost knocking it over, while i scrambled to pull my tank top down over my now much-exposed underwear and ass.  this was of course not successful because the bottom of my tank top was now under the thong, and by the time i managed to get the whole mess straightened out, i was laughing uncontrollably.  

crimson with embarrassment, i plopped down, buried myself in finishing the exam, and scooted the hell out of there without making eye contact with anyone (including the professor who did not seemed amused by my distraction).  for what its worth, i think i still managed to get an a.

TIFU by temporarily losing control of my clothing.