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 actually happened today, unlike 95% of tifu posts. 

i was on my way to class to take a final (i take summer classes), my commute was going smoothly. i was about halfway there and still had 15 minutes to spare. now usually i'm a really aggressive driver but i thought to myself, "you know, i got time, i may as well just sit back and relax, enjoy my commute without driving like a dick."

here's where the fuck-up happens, i'm in a line of cars waiting for a light to turn green and there's a nun in a church van full of kids pulling out of the cvs directly to my right. me first thought was "zero chance i let this van in front of me". i second guessed myself, and thought "you know what this is a perfect opportunity to do my "good deed" for the day so i let her in. 

biggest mistake of my life. 

turns out she was driving to my school for only god knows what (no pun intended), so i follow her the entire way to my school. 19 mph in a 35. my less than 10 minute ride from that cvs, turned into 30. i showed up to my final 15 minutes late and my professor told me that i was not able to sit for the final because i was late. so in retrospect, i should've just said fuck the church van and continued driving like a dick.

TIFU by letting a church van get in front of me