Hi! I have a 4.5mo old Chi mix. She is as sweet as can be the majority of the time. She has recently developed a bad habit of growling at me and nipping when she doesn’t want to be picked up - if she wants to keep playing or sleeping. Again it’s not all the time, but has happened enough I’d love some input for how to stop the behavior so it doesn’t get worse. For now, I have just been saying No firmly. Thanks!