So Henry and I are taking treats to share; one for Henry, one for Sheldon. I've explained the situation to Henry, but he just doesn't get it...the whole roll over and be submissive, or have serious injuries concept seems to be beyond him. We'll keep working on it.
This is my latest treat attempt. Henry and Sheldon seem to like it even more than Pup Corn, which they thought was pretty tasty.
I found a bunch more recipe ideas at: http://dogsnpawz.com/make-your-own-dog-treats I'll try some of them and share the successes and failures. If you get there first, please tell me how it goes!