I always preface with the fact I'm bad at names. I forget names of coworkers I've spent years with. Even friend's names sometimes. In fact, I does not even have to be a person or animal's name, jus the name of something. Places, objects, locations, etc. I frequent a park that has sentimental value and I couldn't tell you the name off the top of my head.

A friend of mine has a joke that I always get the letter wrong. Usually I'll say "I think it starts with [letter]" and most times it's incorrect.

Usually there are ways around it since I've been told it's rude, but nobody has ever outwardly told me they were unhappy I've forgotten. Typically they will notice I forget other names before it becomes a problem with them.