Theo update
Today I took Theo to a 1:1 training session with J from Help My Dog: we went around Neyland to see him in action.
It's not so much that Theo isn't a very good dog, as that my confidence has been a bit knocked and I really wanted someone else to see him doing his thing and reassure me he is a Very Good Dog and give me some pointers on things we could work on to improve his on-lead dog greeting skills.
Honestly, I looked back through this journal at the dog-related stuff I used to do, and I used to have so much confidence! Wonder where it went.
Mission accomplished, anyway. We also get to join a group walk in a month or so, which I think he might enjoy.