Word Abuse

I'm going through a couple of writing courses at the moment, which I sometimes use as a means of inspiration. Some of the more structured courses come with little writing exercises. These are usually enough to whet the appetite, or put a particular skill to the test.
One such exercise was the application of words in unusual contexts. The premise is that an ordinary word used in an inappropriate setting can create a new mood or form for the writing.
Some of the responses to this exercise are excellent (no I won't be sharing them here), but there are others where I feel that someone is abusing the language.
As I'm not trying to embarrass anyone, I won't be giving examples, but it got me thinking about something. Is there anything you've written in the past that you look back on and shudder? Have you ever written a poem, song, story that you now feel is so weak or embarrassing you wish it had never existed?

As for the exercise, my own example is this:

Uninvited, I was overtaken by a vibrant anxiety, filling my head with noise and heat.