The Understanding...

There's an understanding between the Dog and Dieter. Here it is - Whatever you don't want to eat, or don't happen to finish eating, just go ahead and throw it over your little tray there, and I'll make sure nobody knows about it...

(Look at Tuscan's intense gaze.)

Tuscan just hovers when Dieter is eating. I guess he knows he's bound to get something good off that tray. Little stinkers - both of them! The best part is, Dieter is getting smart now, and knows he can trick Tuscan by pretending to throw something. Tuscan will jump looking for it but with no reward. Smart little cookie.