The job reference hesitation.
Nothing’s more empowering than when your secret hate-crush (the polar opposite of a love-crush) puts your name down as a reference on a job interview. Don’t go overboard, answer most questions in a straightforward manner, but when the moment arises, drop an awkward pause to plant the seed of doubt in the interviewer.
Congratulations. You probably just cost someone a job, or at least a lower salary offer and they’ll probably never be any the wiser. Hater. I hope you’re proud.