I usually get, "is she a long-haired chihuahua?" but I have actually been surprised with how many people in my small town ask if she is a papillon. I think half of the people I tell that too think I'm making up a breed or it's a mix or something.
I got asked if she was a border collie puppy once, but by a six year old girl, who probably wasn't too well-versed in breeds. At ten weeks, Cali was probably about the size of a two week old border collie, at the very most. I could see someone having mistaken her for one at the age, at least until they realized how small she actually was. She also got called a "barking cat" once and my guy friends tell me how she is a rat, and not an actual dog, all the time.