Is there a way to disallow a certain combination of commands and options?

Say, I create a new repo, and try to commit. Git shows me

*** Please tell me who you are.

Run

  git config --global user.email "you@example.com"
  git config --global user.name "Your Name"

to set your account's default identity.
Omit --global to set the identity only in this repository.

Without reading the last line, I run the two lines suggested by git (with --global) and happily commit. A week later I create a new repo for a completely unrelated project where I'd need to commit under a different user.email. Without even thinking about user.email, I try to commit, it goes through and I push to the origin. The above happened to me twice and made me think whether there is a way to disallow git config --global. For example, if I run

git config --global user.email "you@example.com"

I'd like bash not to run the command and show me a warning, but when I run

git config user.email "you@example.com"

I'd like it to go through. Is it possible?