It's natural for dogs to form attachments to human members of the household, but when does that attachment become destructive? Separation anxiety is a condition in which the dog displays excessive anxiety when apart from the people to whom he is attached. With patience, separation anxiety can be prevented, managed, and even eradicated.
I purchased one of your Bob-A-Lots. Don't ever take it off the market. It is wonderful. Especially for those dogs that inhale their food and there is no other way to slow their eating. They get more bang for the buck if they have to work for their meal. Far more satisfying and better for their stomach.