Failing in the way that it is virtually not fixable (e.g. Windows user names) or destructive (e.g. removing some unrelated directories) is not neat. It is even

Failing in the way that it is virtually not fixable (e.g. Windows user names) or destructive (e.g. removing some unrelated directories) is not neat. It is even often said that Windows had a space in `C:\Program Files` (now `C:\ProgramData`) in order to make sure that app developers have to handle paths with spaces correctly. Don't know if it's indeed true, but at least it's believable.