I have read here several times (if not more) dogs aren't fully mature until they're , what, almost 4 or so...so why is it coming as some kind of shock to me that Harley's temperament seems to be changing now? I got her Dec. 22, this year, and she's about 15-18 months old. She had wondrful manners for the first few months. Lately, she's been jumping up to greet you. She had almost NO prey drive at first, now it seems to be kickin in. She NEVER put her mouth on anybody for the first 4-5 months, now it seems she often needs correction. Also, this is embarrasing , but here it goes: she was not house broken when I got her, but she learned pretty quick. However, occasionnaly if we get up in the middle of the night, and don't let her out, she poops on the floor. Now, let me be more specific. I was up at mighnight. I let her out. My daughter woke me up at 4 am, and I almost forgot.... then I went looking for Harley before I went back to bed. Sure enough, there's a pile waiting for me. I KNOW she can hold it for longer than 4 hours. I don't like to have to crate her at night, b/c I have to leave by 7am, and she has to be crated then. It's not every night, and if my bedroom door is shut, she's fine. What is going on with my dog? I'm reading Cesar's Way right now, so maybe he can enlighten me as to how I've managed to screw up my dog's "energy"