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: today while driving in to work on the highway i decided to slow down a bit to let someone coming in on an on-ramp merge in front of me. the truck behind me didn't like that, so he got right up on my ass and wouldn't back off. that's fine, i've dealt with tailgaters before and it doesn't bother me. it's dangerous, but accidents rarely happen. unless something flies off of the car you just let merge and smashes your windshield, forcing you to slam on the brakes and get rear-ended. life teaches weird lessons sometimes. fuck me, right?

TIFU by letting someone merge in front of me on the highway.