Start working on the "leave it" command
What was successfull for me was sit them down show them treat and keep in hand. When they try to eat it u say leave it and don't let them take it. Keep saying it until he looks away or the second he loses interest and then reward him.
Keep working on this then try bit with different scenarios. If the dog isn't learning try using what ever way u usually correct them as a correction
Hope that helps
Sent from Petguide.com Free App