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: obligatory this was years ago, from when i was in primary school and therefore was just a little kid, but i thought it'd fit right in here, so here we go.

even though it was years ago, i remember it really very well. i loved running, and used to play tag with my friends regularly in the playgound. i've also never been good with co-ordination, and this regularly resulted in minor trips and falls, but this was by far the biggest fuck-up. 
so at my primary school, there's a part of the playground that goes around the corner of the building to a sheltered area. this place was what we considered the "holly" in our game, where we could be invulnerable to being tagged for a short amount of time. i was here. my time at holly was up, so i bolted around this corner, and tripped over a stick on the ground... right into the head of a girl. she was a lot shorter that i was, and was just stood there. i remember thinking something along the lines of "oh fuck." to myself as i slammed into the head of this girl with my front teeth. my teeth, upon impact with her skull, had been knocked inwards by the force of it. as you can probably imagine, it was really damn painful. however, i probably got the better end of the deal, because the impact with my teeth had made perfect a tooth shaped mark on her forehead, which i vividly remember seeing on my way out of the school to my emergency dentist's appointment. not sure what happened to her afterwards, but apparently she had a dental scar in her forehead for quite some time, like some weird fan made harry potter original character.

TIFU by playing tag/tig