Does anyone have a nickname where it just feels weird when people call you by your actual name?

My sister's name is Kennedie, but we call her bobby. Always have since she was a baby because her 1 year old couldn't say Kennedie so he tried to say baby but it came out "bobby" so the name just stick. Now whenever someone asks for Kennedie it takes me a minute to figure out who they're talking about lol

We also have 3 cats, Sketch, Jaco, and Sage. But we call them Kitty, Cat, and Kitten. Real original right? Lol

So how about you?