I have a problem with our beagle and separation anxiety... When we first got him, we couldn't leave the room without him whining. Now that we've had him longer, that has improved, but on the other side it's gotten worse. It doesn't matter if he's in his kennel or in the bathroom, we can be gone 20 minutes or an hour, and all he does is bark and whine... Anyone have any ideas on how we can curb the anxiety?