Mee, I have a suggestion on how to introduce the tunnel. Start with one tunnel, only have it spread so that it is 2-3 long. Have someone hold the dog on the one side and go to the other and call your dog, when it comes give lots of praise and treats. If the dog is afraid make the tunnel shorted. As your dog get use to it you can increase the length. I would wit on using the connector attached to the tunnel. You can introduce the connect by itself and once the dog is used to it attach it to one tunnel. If the dog is afraid of it I would unconnect it. The import thing is to set your dog up to ALWAYS succeed. If it becomes frightened then make the task easier. If the dog gets "stuck" in the tunnel you need to remain positive. Don't let the dog get scared. Keep calling it and sound happy and positive. If you need any other advice or have questions let me know.[/B]