Sentence "The bad state is not something that’s *expected* to happen occasionally." could be written more clearly.

[mzagrabe]

• I have checked the latest main branch to see if this has already been fixed
• I have searched existing issues and pull requests for duplicates

URL to the section(s) of the book with this problem:

https://github.com/rust-lang/book/blob/main/src/ch09-03-to-panic-or-not-to-panic.md

Description of the problem:

Thank you for writing the Rust Book. It is appreciated and I am learning many things. Kudos to a job well done!

The sentence,

"* The bad state is not something that’s expected to happen occasionally."

does not read well. The three words, "not", "expected", and "occasionally" force the reader to make cognitive switches about when it is proper to panic! for "bad state". I'm still not sure about when this bullet point would apply to the context of the section it resides in.

Suggested fix:

Perhaps:

"The bad state is something that is unexpected and occurs infrequently."

Maybe also provide an example for each of the three bullet points in this section.

[carols10cents]

Thank you, great suggestions!