I think its the females! My Harley was an absolute ANGEL a JOY to have as a puppy. Rarley did anything wrong except the ocassional accident on the carpet. But thats to be expected with a puppy. My Roxy is a devil in Pug clothing. I've learned my lessons and will have all male Pugs in the future. Hang in there it gets better before it gets worse. I swear Roxy JUST barley started to calm down this week. And she's a year and a half old. They say they are not considered adults until they are three. For me that third birthday cannot come fast enough. Hang in there!