"Where did we get you?!" is a common, exasperated question we pose to the boys here. At some point we provided the answers: Pook is from the Funny Farm and Bug is from the Looney Bin. Really, it explains so much!
I can't remember how it came up, but at some point on our vacation, Bug decided to tell us about his memories images of the Looney Big. "It's like a gigantic tea cup with a fence around it and people running around inside it."