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. i went to cut the grass in my backyard since if i use the lawnmower, it will thrash around rocks  violently. so i go in the shed and get the weed whacker with the extension cable to power it. i start to cut the grass but then i notice that the green string is too long and is hitting the weed whacker guard to protect my baby legs from rocks. i decide to turn the thing upside down and grab some scissors to cut it. usually, i disconnect the power cable so i ensure my safety but this one time i decide against it. the one fucking time i don't disconnect the cable is also the same fucking time i accidentally step on the trigger. that one fucking second of power to the weed whacker was enough time for the string to slash my skin some 3 times. i got that feeling where you don't know you hurt yourself until you see the disaster. in the end, it wasn't as severe but i can still feel the burn it had when it slashed my now tomato-red skin.

proof: [moment of incident](http://i.imgur.com/nzziaai.jpg)
[couple hours after incident](http://i.imgur.com/xal3p42.jpg)

TIFU by weed whacking my arm