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 .. i was cleaning the lid of my coffee tumbler with about 3 tablespoons of baking soda and two cups of vinegar. sealed it up (contigo vacuum seals and can spray boiling steam out when you first use it), shook it real good for about a minute to loosen up the mold.

[blew the plastic thread off.](http://imgur.com/a/qgx4k#e9rjobo)

[the cap exploded into the ceiling. not sure how, exactly. i was holding it horizontally and shaking it. it flew past my face.](http://imgur.com/a/qgx4k#rk34ted)

[it cracked this glass in the sink after hitting the ceiling.](http://imgur.com/a/qgx4k#efeuyk2)

[all in all, it did a good job of cleaning the window and ceiling. there used to be a lot of tomato sauce splatters up there.](http://imgur.com/a/qgx4k#vg9c602)

thinking about xposting this to /r/howto. i think almost died today. tifu.

TIFU exploding a hole into my ceiling with a vacuum-sealed coffee tumbler full of vinegar and baking soda.