When people make fun of my stutter, I educate them on my personal history of stuttering. I went to the NIH to participate in a study on stuttering so that interesting tidbit helps lighten the mood. And some people are just immature. I co-worker can’t do his Rs and a mutual friend makes fun of him behind his back all the time. I call her out on it all the time but it does not change her behavior. When I was in college, I interned at a company that made the machines and accessories for microbiology testing. I always cringed when I said the names.