Love to hear from the experts on this. Maybe I'm just crazy but this donned on me while watching Duggan and his habits over the last 7 months, along with people writing in about digging in the garden and scratching walls. My boy did it all. He'd walk the perimeter of our house smelling the base boards ocationally stopping to scratch certain spots. He'd frequent a favorite corner when he was in the basement. He'd dig certain spots in the driveway and garden and in the shrubs in front of the house. He'd also eat and lick and search for bugs in the sliding door track and in corners of the house where they frequented. This got me thinking, cause he has calmed down now and rarely digs at all anymore and doesn't scratch now. It all started when he learned to use his nose and was exploring everything with his mouth. He used to find cigarette butts I'd thrown in the trees and bring them to the back door. So what I'm asking is this, Is it possible he smelled bugs in the walls, worms in the garden etc. Was he hunting ? The corner in the basement he loved so much had a mouse living there we found later during renovation. The Shrubs he dug had a tunnel system for a squirrel built under the trees next to the foundation. The garden was rife with huge night crawlers and the areas I found him digging in the crushed rock driveway also held ands and spiders. Is it possible all the wall scratching and digging was just him hunting, trying learn about his new found scents. Am I daft and is this common knowledge already ??? I just see people asking why and how to stop but rarely, if ever, has anyone provided solid reasoning of why they do it. He's 8 months now and pretty much over it but I'm guilty of reinforcing the behaviour in the beginning because I was so paranoid about him becoming ill. Any thoughts? Ps. There were earwigs in the walls.