You should know by now that giving out your password is a bad thing. You should also know that system administrators would never ask you for your password as well. But perhaps you encounter occasions where you still give out your password, even though you know you’re not suppose to.
Here’s an idea for you.
Make your password something obscene, disgusting, or embarrassing. The idea is to make your password something you would never want to share under any circumstance. Then the next time you’re asked for your password you’ll be motivated to not give it away.