My dog is infinitely optimistic that TODAY will be the day that I just inexplicably hand over my entire hamburger.
Do it.
Do it.
Just wait till they one day when he isn't, and just put it in front of him.
And take photos!
For my dog Bobbie's 14th birthday we got him a whole pizza and put it on the floor. He was too suspicious to just dive in. We had to eat slices partially and then hand them over. He lived to about 16.
Here he is in southern California at about age 12.
Irrational exuberance.
Be the change your dog wants to see in the world.
That's because, although today may not have been the day, the day will come when you do it. Why not today? If not today, why not tomorrow? We can see that you are tempted. Give in. You won't regret it. Much. :)