There’s a coworker of mine that constantly insults this sweet old lady that also works with us behind her back for being slow. She knows everything about the job and is very knowledgeable and a great resource for advice and very sweet but she is physically slow being well into her 60s and having poor health, so this other worker constantly makes fun of her behind her back and always proclaims how glad she is when she’s off or when she has to call in sick because “she would have just been in the way”. (Which is quite honestly not true she’s still helpful to have around) this old lady doesn’t hear her making fun of her our saying hateful things like that, so is it still wrong? I know this is a very harsh and extreme (though sadly true) scenario that you would never do, but I’m just explaining why things like this bother me.