I just ran across this today and thought it was interesting although the answers seem surprising. How could a chihuahua be almost as destructive as a great dane?
http://doggies.com/blog/2008/09/16/t...tructive-dogs/

Of course we don't have a lot of info here, i.e., do these pet owners use a crate for training or just let the dogs run loose unsupervised? At any rate, it made me smile because I remember the puppyhood days. The worst thing Bella ever did was find a little piece of "unglued down" wallpaper and tug on it which made it pull up off the wall. She did this right in front of me while I was on the phone!