Thank you for all the advise. I only gave him little bits at a time today. If he motioned to throw it, I removed it and put it back on the plate on the big table. No plates on the tray, just food and just what he's eating it. He started to catch on fast. Throwing food on the floor lost all of the excitment when I didn't give him any to throw. Now, the dogs... they aren't too happy with the new procedure. lol

I'll suggest mom follows through with this on the weekend and see if we can make any improvments.