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 a couple of years ago me and my friend decided to go for a walk. it was dark outside and we brought with us some leftover fireworks from new year's eve. most of the fireworks were modified shells which exploded on the ground instead of launching up in the air. we walked for a while and came to a hill. we decided to light a shell and run down the hill and hide. now here comes the fuck up. we lit the fuse and when we turned around we could see a cyclist coming down the hill. we jumped under a bush and prepared for the boom. 

the boom never came. i was relieved, the shell never went off and we didn't hurt the cyclist. oh boy how i was wrong. we could see the cyclist looking at the shell and when he decided to take a closer look it fucking exploded. a huuuge fucking explosion with sparkles and blue shiny particles in the sky. we we're speechless, we could hear the cyclist yelling "are you scared?! you shouldn't be". when the cyclist left we walked back home laughing about what we just had witnessed. 
**edit: grammar**
tlrd: went for a walk with my friend, decided it would be a good plan to light some fireworks and we almost killed a man.

TIFU by playing with fireworks