Sorry if this sounds mean but I got a funny image of your dog mixed with the fruit loops tucan. I wish I had some advice but Gunther only comes to me in the yard, haven't dared tried taking him off leash to try anything yet.
Hail Gunther 7-2-2013
If at first you don't succeed, destroy all evidence that you ever tried.
"Some people never end up going crazy...what a truly terrible life they must lead." - Unknown