Yesterday my Pem picked up a paper towel so I rushed to get it away from her. She growled, and basically tried to bite me. She's normally relatively mild-mannered and sweet so this kind of shocked me. Later in the day she tried to eat cat poop (gross) and when I tried to open her mouth to make her drop it she growled and tried to bite me again. Are there any training techniques to discourage behavior like this? Or maybe it's just normal puppy/dog behavior and I'm being ridiculous! ha.