carriesue-some nerves are normal. I think you're going to do GREAT with your pup! Please do NOT use Grim as a litmus test for the landshark thing. He's making an art of it, LOL!
My update on Grim- I had taken him on one walk that took 45 minutes to go 2 blocks. He was sitting and whining at me (he's VERY vocal) frequently, and doesn't know cars... they do bother him when going past. So I had an epiphany and decided to have my wife walk the girls in front and Grim and I followed. He did SOOO much better! Even stopped to check out a couple of parked cars! He seems to have finally mastered going up steps. Tonight after he pottied, he headed for the steps and did NOT wait for me! Now, there are about 15 steps without backs to get up to the deck. He finally went up them with both front feet and both back feet at the same time. He was going so fast that by the time I walked the ten feet to the steps, he was already half way up!
We need more work on going down the stairs. He's a drama king, and will scream like someone's killing him even if I have good hold of him while walking him down. I know he'll get past this. Every new thing he's had to do he gets past. He used to howl about going up the stairs, and is now taking them like a champ! I don't push him with it, though. He's still curious about them, and will stand looking down the stairs inside (which do have backing and are carpeted.) I'm going to keep on walking him with the other dogs (or at least Layla) until he's happy going on walks and completely comfortable. He only pulled trying to get up front with the girls.. but we had issues with the leashes tangling. Most of the time he walked right next to me. He REALLY needs these walks to tire him out. I've had Layla training him on chasing toys I throw, LOL! It's GREAT if you have an older dog to help teach the younger one! He still has the attention span of a gnat. He eats like a horse! Bigger every day it seems. Still loves his crate and when he's tired he'll go down the hall and lay in front of it, waiting for his treat. If I'm in the bedroom resting on the weekend, my wife tells me he keeps walking down the hall looking for me.
My wife's old mutt was drinking from his water bowl, and Grim just walked over as if to say "Excuse me, but that's my bowl" and she growled at him. My Pug went flying across the room, blocked the mutt from the water bowl and growled and barked at her! LOL! I could just hear her saying "That's MY puppy! Don't mess with him!" It was something to see for sure! I can't wait to see her reaction when he's towering over her. She's also working with him on bite inhibition, but it doesn't seem to be crossing over to humans. We've just got to get him 100% on board with walks (which with another of our dogs isn't a problem) and get him going down steps. In another month, carrying him down just isn't going to be an option!