I need to get a job at Apple to stop “omw”-> “On my way!” (Complete with the `!`) from reappearing in my Text Replacements every month or two, no matter how many times I delete it.

(Try typing “I’m omw to the car” or something to see how annoying this is)

Apparently the current state of the art to fix this problem is to remove it and add an "omw" → "omw" text replacement in its stead. A friend recommended this to me and I haven't had problems with it since. Yes, it's nuts, but it is what it is.