4 months isn't too early to start training- you just have to keep the sessions short, fun, and with lots of treats and lots and lots of praise. One thing I do with Elly because she is so sensitive is that we always, always, always end training on a happy, positive note.  For her that sometimes means we do a couple easy tricks or obedience tasks- something as simple as a sit!

How is Totem doing with any fear issues from the attack?  Elly was hit by a car and so was afraid of cars and engine noises when I got her.  Lots of work to get her over that, now she only gets nervous around really loud trucks or motorcycles but that doesn't even happen every time anymore.

Elly is quite obedient now and I even trust her off leash in certain places but we have been working on her training for almost 5 years.  I still don't trust her anywhere there might be cats though.  She was literally afraid of leaves blowing down the street when I first adopted her but she becomes a fearless beast when she sees a cat!  We have been working hard on that over the last year, she will still start after one but usually stops when I tell her to 'leave it'. 

Karen and the Spirit Pug Girls

Elly will often stretch her one back leg out behind her, it does look a little weird but I think it's a good stretch for her. She does not do it when peeing however...

Did he have a preferred leg he lifted when he peed or did he pee in a squat before? Some boy dogs take a while to figure out their new pee stance, especially if they always lifted one particular leg.  My quad Pug boy will only pee when he lifts his right leg. Even if he pees in a squat he will lift his right foot off the ground.

I'm glad he seems OK on your short walks so far!

Karen and the Spirit Pug Girls