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: this shit happened 2 hours ago!! i was working on an air conditioner for one of my customers today. as usual, i turn the unit on at the thermostat, and walk outside to check the operation of the unit, because she complained it wouldn't cool the house. after i connected my freon gauges to the unit to check the pressure of the system, i left them connected as i went into the attic, to check the filter.  as i go into the attic, i hear the indoor units blower running, and i hear the freon coming from the outdoor unit running through the freon lines. any experienced hvac guy knows these sounds. as i am checking the filter, i notice the sound of the freon going through the lines starts to fade away, and then stop. i check the filter and it's fine and i realize that the indoor unit is still running. so i make my way outside to check the outdoor unit, and the horror i found made me sick to my stomach. the lady's prized cocker spaniel had chewed on my freon lines and must have suffocated from the freon! i was in horror! not only did i have to tell this lady that the only problem to her system was from her dog laying behind her outdoor unit, and the hair and dirt around it clogging her outdoor unit, but i had to tell her the little shit was dead! this lady chewed me out for letting her dog out when she has a dog door, on her back door! sorry your dog, bella died, but it ain't my fault!  and then she didn't want to pay me for my time, or the damage her stupid ass dog did to my gauges! and she probably wonders why she is single.

TIFU by killing a dog while trying to cool its fat ass owners house down