I really like it but then I've got a 17yr old Dexter, often called Dex.
Yes, I've met dogs with the name Rex and Dexter. I've also know boys/men called Otis, my dogs name and girls/women called Dolly, my cats name!
Loads of girls/women with the same name used for dogs - Rosie, Betsy, Betty, Cilla, Ruby, Lily, Cleo, Gina.....just a few I can think of that I know.
Also know of dogs called Dave, Tommy, Rufus, Joe........