(feel free to add your own Have You Ever ----)s

. woke to a mountainous wall of code you couldn't remember writing, devoid of formatting, comments, white space...
And on a whim, compiled to find it worked perfectly despite spending the entire previous day unable to make it work?

.
.
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And did you try to take it apart and format it sensibly, or just leave it alone and go on?

Nope, but that does sound like a soul-crushing experience.

Have you ever tried to refactor a big-picture part of your code's architecture, and bit off a larger chunk than you could chew at once, taking more than two weeks to get your code even compiling again, let alone running?

Have you ever tried to refactor a big-picture part of your code's architecture, and bit off a larger chunk than you could chew at once, taking more than two weeks to get your code even compiling again, let alone running?

all the time... people just love their singletons and shared state... leading to any change being a big-picture change...

Have you ever joked about developing a keyboard that delivers an electric shock if ctrl-c or ctrl-v are pressed and later thought there really is a need for these after having to fix some idiotic bug that was copy-pasted in 5 different locations in the code?

was copy-pasted in 5 different locations in the code

I spent a week creating such situation. Now I get to fix it.