Ok, I did a thread on here some time back, about our dog, Razor's eating habits and scabbing!
It has got worse! He still has 3 meals a day, changed his food to Eukunuba, as this is what we were recommended by our vet (contacted our vet regards the eating, took him in, wormed him again, to be sure, and checked him over, everything fine) costing us a fortune at the moment, but the vet said once his eating habit has calmed down, we can then try something else!
Everyday, throughout the day, 24/7 (well except for bedtimes) his head is constantly on the floor, he's walking around, and sniffing for food, he's going in the garden, and eating 'big' clumps of grass by the mouthful (he is now watched outdoors) pinching food off other people (well trying)
I gave him the benefit of the doubt the other day (as we have been putting him in the conservatory out the way whilst we eat coz of his food pinching habit) and let him stay in the kitchen/living room area whilst the kids were eating there dinner at the table, turn my back for 1 minute and Razor is there, up at the table licking my son's plate

I have no idea what else we can do, he has always been greedy, right from being a pup, but is there any training we can take on board to try and stop this behaviour.
I know most dogs do it, but Razor is just going ott at the moment.
Thanks.