| Re: Dogs traumatic experience
You need to reintroduce walking outside to him slowly, and in stages, making sure it's super awesome for him the whole time. Treats, praise, toys, anything that makes him view it positively. I'd spend a week or so just putting him on leash a few times a day and sitting on the porch and giving him treats or playing with a toy. Not trying to go anywhere, just chilling. Then when he gets excited over the leash again (and he will, given some time and consistency), then I'd move to the drive way and repeat until he seems excited about that, then maybe do some short walks to the end of the drive, giving him treats or stopping to play with a toy every couple feet, then move to walking down to the end of the block and back. Just make sure to move as slow as he needs to move and don't rush him. More negative association will only set back the progress. | 
