Submissive
Friendly to others - my dog is my dog; not your dog
Needy/wanting to be touched all the time - I like a dog that comes to me; touches me and once acknowledged is good for awhile
welcoming strangers on the property without my permission
liking other dogs a lot -- I don't mind my dog to have friends; but it annoys the crap out of me that my dog would die to see and play with another dog
Friendly to others - my dog is my dog; not your dog
Needy/wanting to be touched all the time - I like a dog that comes to me; touches me and once acknowledged is good for awhile
welcoming strangers on the property without my permission
liking other dogs a lot -- I don't mind my dog to have friends; but it annoys the crap out of me that my dog would die to see and play with another dog
I'd have to say human aggression/reactiveness. Any dog that doesn't happily let a new person into the house when you give an okay. Boo barks incessantly at one particular individual when he comes over (she's afraid of his guitar case), and it drives me insane. Otherwise, she's perfect.
Also extreme dog reactiveness/aggression. I can handle a dog that gets upset if an overly pushy dog gets in their face, but I wouldn't be able to handle having a dog flipping in circles at the end of its leash at another dog.
and yapping. A dog can have a voice... but there is a time and a place to bark. Not at the wind/leaves/birds/squirrels/people/everything it wants or sees.
and, in the case of different breeds, I wouldn't want a breed that is so weirdly shaped that it can't breathe or move correctly.