Teach the "Look" command - some people call it "Look-At-That".
If you have a good "sit", combine the two - that will give Dallas much more to think about. But even if you don't have a reliable "sit" yet, start teaching the "look".
Start teaching it with 'low-intensity' targets such as people just walking by, kids riding on bikes, etc. before you go the the 'higher-intensity' target of the mail deliverer.
Some people start this with stationary targets and if your dog is interested in them that would be a fine start. However, many high-drive dogs don't show much interest in stationary targets. That's why I say start with moving but very non-threatening targets.
Teaching a positive behavior is much better than a constant stream of negative "no -no -no", and is also better than simple desensitization training or counter-conditioning training.
If you do a good job with this - especially if you combine it with a sit - your dog will sit and look at a target on her own whenever she encounters something out of the ordinary. This is very desirable behavior for high-drive dogs.
If you have a good "sit", combine the two - that will give Dallas much more to think about. But even if you don't have a reliable "sit" yet, start teaching the "look".
Start teaching it with 'low-intensity' targets such as people just walking by, kids riding on bikes, etc. before you go the the 'higher-intensity' target of the mail deliverer.
Some people start this with stationary targets and if your dog is interested in them that would be a fine start. However, many high-drive dogs don't show much interest in stationary targets. That's why I say start with moving but very non-threatening targets.
Teaching a positive behavior is much better than a constant stream of negative "no -no -no", and is also better than simple desensitization training or counter-conditioning training.
If you do a good job with this - especially if you combine it with a sit - your dog will sit and look at a target on her own whenever she encounters something out of the ordinary. This is very desirable behavior for high-drive dogs.